Q: What is the sum of all factors of the number 640,562 excluding 640,562?
A: 411,790
The factors of the number 640,562 are: 1, 2, 13, 26, 71, 142, 347, 694, 923, 1846, 4511, 9022, 24637, 49274, 320281, 640562.
If you add them up, you will get the total of 640,973. Now subtract 640,562 to get 411,790