Q: What is the sum of all factors of the number 840,428 excluding 840,428?
A: 640,492
The factors of the number 840,428 are: 1, 2, 4, 163, 326, 652, 1289, 2578, 5156, 210107, 420214, 840428.
If you add them up, you will get the total of 841,068. Now subtract 840,428 to get 640,492