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