Q: What is the sum of all factors of the number 639,790 excluding 639,790?
A: 522,722
The factors of the number 639,790 are: 1, 2, 5, 10, 137, 274, 467, 685, 934, 1370, 2335, 4670, 63979, 127958, 319895, 639790.
If you add them up, you will get the total of 640,312. Now subtract 639,790 to get 522,722