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 ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            int a = 0, b = 0,c=0,count=0;
                           string[] str = Console.ReadLine().Split(' ');
                a = int.Parse(str[0]);
                b = int.Parse(str[1]);
                c = int.Parse(str[2]);

                for(;a<b+1;a++)
                {
                    if (c % a == 0)
                        count++;

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