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);

$num = 0;

for($i = $a; $i <= $b; $i++){
    $ans = $c % $i;
    if($ans == 0)
        $num++;
}

echo $num,PHP_EOL;