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 ConsoleApp_ITP1_3_C
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split(' ');
            var startNum = Int32.Parse(input[0]);
            var endNum = Int32.Parse(input[1]);
            var dividedNum = Int32.Parse(input[2]);
            var counter = 0;

            for (int i = startNum; i <= endNum; i++)
            {
                var rest = dividedNum % i;
                if (rest == 0)
                    counter++;
            }

            Console.WriteLine(counter);
        }
    }
}