Q: What is the sum of all factors of the number 10,840 excluding 10,840?
A: 13,640
The factors of the number 10,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840.
If you add them up, you will get the total of 10,853. Now subtract 10,840 to get 13,640