Q: What is the sum of all factors of the number 639,370 excluding 639,370?
A: 579,518
The factors of the number 639,370 are: 1, 2, 5, 10, 17, 34, 85, 170, 3761, 7522, 18805, 37610, 63937, 127874, 319685, 639370.
If you add them up, you will get the total of 639,949. Now subtract 639,370 to get 579,518