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;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {


        static void Main(string[] args)
        {
            string[] lines = Console.ReadLine().Split(' ');
            int a = int.Parse(lines[0]);
            int b = int.Parse(lines[1]);
            int c = int.Parse(lines[2]);

            int num = 0;

            for (int x = a; x <= b; x++)
            {
                if ((c % x) == 0)
                    num++;
            }
            Console.WriteLine(num);
        }
    }
}