#include<iostream>
using namespace std;
int main() {
    int a;
    int b;
    int c;
    int i;
    while (1) {
        cin >> a >> b >> c;
        for (i=a,i++,i<=b) {
            if (c % i == 0) {
                x++;
            }
        }
    }
    return 0;
}
