Q: What is the sum of all factors of the number 639,580 including 639,580?
A: 1,359,792
The factors of the number 639,580 are: 1, 2, 4, 5, 10, 20, 113, 226, 283, 452, 565, 566, 1130, 1132, 1415, 2260, 2830, 5660, 31979, 63958, 127916, 159895, 319790, 639580.
If you add them up, you will get the total of 1,359,792.