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.Linq;

namespace Number
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = Console.ReadLine();
            int[] n = s.Split(' ')
                       .Select(e => int.Parse(e))
                       .ToArray();
            
            int a = n[0];
            int b = n[1];
            int c = n[2];

            int count = 0;

            for(int i = a; i <= b; i++)
            {
                if((c % i) == 0)
                    count ++;
            }

            Console.WriteLine("{0}", count);
        }
    }
}