Q: What is the sum of all factors of the number 423,228 excluding 423,228?
A: 640,660
The factors of the number 423,228 are: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 2713, 5426, 8139, 10852, 16278, 32556, 35269, 70538, 105807, 141076, 211614, 423228.
If you add them up, you will get the total of 423,868. Now subtract 423,228 to get 640,660