Q: What is the sum of all factors of the number 1,087,640 excluding 1,087,640?
A: 1,359,640
The factors of the number 1,087,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 27191, 54382, 108764, 135955, 217528, 271910, 543820, 1087640.
If you add them up, you will get the total of 1,087,641. Now subtract 1,087,640 to get 1,359,640