Q: What is the sum of all factors of the number 286,640 excluding 286,640?
A: 379,984
The factors of the number 286,640 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3583, 7166, 14332, 17915, 28664, 35830, 57328, 71660, 143320, 286640.
If you add them up, you will get the total of 287,019. Now subtract 286,640 to get 379,984