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 ITP1_3_D {
    class Program {
        static void Main(string[] args) {
            int[] s = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            int s1 = s[0];
            int s2 = s[1];
            int s3 = s[2];
            int count = 0;
            for(int i = s1; i <= s2; i++) {
                if((s3 % i) == 0) count++;
            }
            Console.WriteLine(count);
        }
    }
}