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 PHP (judge verdict: Accepted)

<?php
    fscanf(STDIN, '%d %d %d', $a, $b, $c);
    $total = 0;
    for($a;$a<=$b;$a++){
        if($c % $a == 0){
            $total++;
        }
    }
    print $total."\n";