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
    $input_line = trim(fgets(STDIN));
    
    $num = explode(" ",$input_line);
    
    $x = intval($num[0]);
    $y = intval($num[1]);
    $z = intval($num[2]);
    
    $count=0;
    for($i=$x;$i<=$y;$i++){
        if($z%$i==0){
            $count++;
        }
    }
    echo $count;
    echo "\n";
?>