Q: What is the sum of all factors of the number 86,840 excluding 86,840?
A: 124,840
The factors of the number 86,840 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 520, 668, 835, 1336, 1670, 2171, 3340, 4342, 6680, 8684, 10855, 17368, 21710, 43420, 86840.
If you add them up, you will get the total of 86,964. Now subtract 86,840 to get 124,840