output_description: Print the number of divisors in a line.
input_description: Three integers a, b and c are given in a line separated by a single space.
attempt: a, b, c = [int(n) for n in input().split()]
  print(b // c - a // c)
  
problem_description: 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.
samples: [{"input": "5 14 80", "output": "3"}]