fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int i, j, k, a, b;
  5.  
  6.     for (a = 3; a <= 1500; a++) {
  7.         for (i = 1, j = 0; i < a; i++) {
  8.             if (a % i == 0) {
  9.                 j += i;
  10.             }
  11.         }
  12.  
  13.         for (b = 2; b < a; b++) {
  14.             for (i = 1, k = 0; i < b; i++) {
  15.                 if (b % i == 0) {
  16.                     k += i;
  17.                 }
  18.             }
  19.  
  20.             if (j == b && k == a) {
  21.                 printf("%d:1", a);
  22.                 for (i = 2; i < a; i++) {
  23.                     if (a % i == 0) {
  24.                         printf("+%d", i);
  25.                     }
  26.                 }
  27.                 printf("=%d\n", j);
  28.  
  29.                 printf("%d:1", b);
  30.                 for (i = 2; i < b; i++) {
  31.                     if (b % i == 0) {
  32.                         printf("+%d", i);
  33.                     }
  34.                 }
  35.                 printf("=%d\n\n", k);
  36.             }
  37.         }
  38.     }
  39.  
  40.     return 0;
  41. }
  42.  
Success #stdin #stdout 2.25s 5284KB
comments (?)
stdin
copy 


			

					
			
			

				
	
		
		
	
		
		 stdout
					

				
				 copy
			

			
	

		
284:1+2+4+71+142=220
220:1+2+4+5+10+11+20+22+44+55+110=284

1210:1+2+5+10+11+22+55+110+121+242+605=1184
1184:1+2+4+8+16+32+37+74+148+296+592=1210



	

		
	 
	
	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			

			                        







			
			

				

	
					
					 https://ideone.com/efYolt
					
					
					
					
					

												

												
						
						

					

					
					
					

						
language:

						
C (gcc 8.3)

					

					

						
created:
								
						
4 days ago

					

					

						
visibility:

						

							 public																												
							
							

								
							

						

					

										
										

					
					 Share or Embed source code
					
					
					
					

						
						
						
						
						
						
						
					

					
						
	
	
	
	
					
					
					
					
					 
					
					
					
					 
					
					
					
					
					
					

					

					

					
						
					

					


	
Discover > Sphere Engine API

	
The brand new service which powers Ideone!

	
	
Discover > IDE Widget

    
Widget for compiling and running the source code in a web browser!