Q: What is the sum of all factors of the number 8,020 excluding 8,020?
A: 8,864
The factors of the number 8,020 are: 1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020.
If you add them up, you will get the total of 8,028. Now subtract 8,020 to get 8,864