Q: What is the sum of all factors of the number 206,840 excluding 206,840?
A: 258,640
The factors of the number 206,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 5171, 10342, 20684, 25855, 41368, 51710, 103420, 206840.
If you add them up, you will get the total of 207,098. Now subtract 206,840 to get 258,640