Q: What is the sum of all factors of the number 43,640 excluding 43,640?
A: 54,640
The factors of the number 43,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 5455, 8728, 10910, 21820, 43640.
If you add them up, you will get the total of 43,694. Now subtract 43,640 to get 54,640