Problem:
How Many Divisors?

Write a program which reads three integers a, b and c, and prints the number of divisors of c between a and b.

Input

Three integers a, b and c are given in a line separated by a single space.

Output

Print the number of divisors in a line.

Constraints

1 ≤ a, b, c ≤ 10000

a ≤ b

Sample Input 1

5 14 80

Sample Output 1

3

Solution in C# (judge verdict: Accepted)

using System;
namespace test
{
  class program
  {
    static void Main()
    {
    int ans = 0;
    string[] str = Console.ReadLine().Split(' ');
    int a = int.Parse(str[0]);
    int b = int.Parse(str[1]);
    int c = int.Parse(str[2]);
    for (int i = a; i <= b; i++)
    {
      if (c % i == 0)
      {
        ans++;
      }
    }
    Console.WriteLine(ans);
    }
  }
}