#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c, count = 0;
  cin >> a >> b >> c;
  for (int x = a; x <= b; x++) {
    if (c % x == 0) {
      count = count + 1;
      cout << count << endl;
    }
  }
}
