Write a program that asks the user for a number greater than 0 and prints out a table of all its factors. If the number is less than or equal to 0, it should report an error and exit.

For example, if the user enters 24, the program should print:

1 x 24 = 24

2 x 12 = 24

3 x 8 = 24

4 x 6 = 24