Q: What is the sum of all factors of the number 639,788 excluding 639,788?
A: 485,644
The factors of the number 639,788 are: 1, 2, 4, 307, 521, 614, 1042, 1228, 2084, 159947, 319894, 639788.
If you add them up, you will get the total of 640,273. Now subtract 639,788 to get 485,644