Q: What is the sum of all factors of the number 40,840 excluding 40,840?
A: 51,140
The factors of the number 40,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 1021, 2042, 4084, 5105, 8168, 10210, 20420, 40840.
If you add them up, you will get the total of 40,891. Now subtract 40,840 to get 51,140