#include <stdio.h>
int main(void) {
int a,b,c,d,e,count=0;
scanf("%d %d %d",&a
,&b
,&c
);
if(a<b){
d=a;
e=b;
while(a<b){
a++;
if(c%a==0){
count++; }
}
}
if(a>b){
d=b;
e=a;
while(a>b){
b++;
if(c%b==0){
count++;}
}
}
printf("%dから%dの範囲に%dの約数は%d個ある",d
,e
,c
,count
); return 0;
}
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