Q: What is the sum of all factors of the number 639,782 excluding 639,782?
A: 488,170
The factors of the number 639,782 are: 1, 2, 11, 13, 22, 26, 143, 286, 2237, 4474, 24607, 29081, 49214, 58162, 319891, 639782.
If you add them up, you will get the total of 640,270. Now subtract 639,782 to get 488,170