The factors of 72 are 1,2,3,4,6,8,9,12,18,24,36,72. The factors can be organized as such $$m=1,2,3,4,6,8$$ $$n=72,36,24,18,12,9$$
Knowing the symmetric properties and that the 12 factors exist. Pair the factors by symmetry. $$(1,72),(2,36),(3,24),(4,18),(6,12),(8,9)$$ The sum of each pair is (arranged in ascending order), $$17,18,22,27,38,73$$
My question: Is there a pattern am I not seeing? Or is the sum of the pair just random gibberish? Assuming we are only working with positive $m$ and $n$, there is an upper bound on the sum of any two multiplied positive numbers, in our example it is $n=1$ and $m=72$ and the lower bound is (assuming we have the whole real line) $n=\sqrt72 $ and $m=\sqrt72 $. So is there a pattern here?