Q: What is the sum of all factors of the number 639,066 excluding 639,066?
A: 669,318
The factors of the number 639,066 are: 1, 2, 3, 6, 43, 86, 129, 258, 2477, 4954, 7431, 14862, 106511, 213022, 319533, 639066.
If you add them up, you will get the total of 639,735. Now subtract 639,066 to get 669,318