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;

class Program
{
    static void Main()
    {
        var line = Console.ReadLine();
        var num_array = line.Split(' ').Select(s => int.Parse(s)).ToArray();
        var a = num_array[0];
        var b = num_array[1];
        var c = num_array[2];
        
        var count = 0;
        
        for(int i = a; i <= b; i++){
            if(c % i == 0){
                count++;
            }
        }
        
        Console.WriteLine(count);
        
    }
}