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;

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

            while (a <= b)
            {
                if (c % a == 0)
                {
                    cou++;
                }    
                a++;
            }
            Console.WriteLine(cou);
        }
    }