# POTD 19 skel
# Author:
# Date:
# Description:

import sys

def get_factors(n):
    """ Return a dictionary with the integers from 2 to N (inclusive) as keys.
    The value associated with a key k is a list of the positive integer factors
    (divisors) of that number, in ascending order.
    Precondition: N is an integer >= 2 """

if __name__ == "__main__":
    pass