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 Ruby (judge verdict: Accepted)

while true
  d = gets.chomp.split
  a,b,c = d.map(&:to_i)
  count = 0
  count_add = 0

  for x in a..b
    if ( d[2].to_i % x.to_i ) == 0
      # count_add = ( d[2].to_i / x.to_i )
      # count += count_add
      count += 1
    end
  end

break
end

puts count