Q: What is the sum of all factors of the number 640,618 excluding 640,618?
A: 437,366
The factors of the number 640,618 are: 1, 2, 11, 22, 37, 74, 407, 787, 814, 1574, 8657, 17314, 29119, 58238, 320309, 640618.
If you add them up, you will get the total of 641,055. Now subtract 640,618 to get 437,366