Q: What is the sum of all factors of the number 13,287,640 excluding 13,287,640?
A: 16,609,640
The factors of the number 13,287,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 332191, 664382, 1328764, 1660955, 2657528, 3321910, 6643820, 13287640.
If you add them up, you will get the total of 13,287,656. Now subtract 13,287,640 to get 16,609,640