**Description：**

Write a program that takes an integer and prints out all ways to
multiply smaller integers that equal the original number,
without repeating sets of factors. In other words, if your
output contains 4x3, you should not print out 3x4 again as that
would be a repeating set. Note that this is not asking for prime
factorization only. Also, you can assume that the input integers
are reasonable in size; correctness is more important than
effciency

**Requirements：**

Lang：pseudoCode
Running time：1s
Memory：32M