#include <stdio.h>
int main(void) {
// your code goes here
int a,b,c,i,k;
scanf("%d %d %d",&a
,&b
,&c
);
for(i=a;i<=b;i++){
if(c%i==0){
k++;
}
}
printf("%dから%dの間に%dの約数は%d個ある",a
,b
,c
,k
);
return 0;
}
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