Q: What is the sum of all factors of the number 543,640 excluding 543,640?
A: 679,640
The factors of the number 543,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 13591, 27182, 54364, 67955, 108728, 135910, 271820, 543640.
If you add them up, you will get the total of 544,319. Now subtract 543,640 to get 679,640