Q: What is the sum of all factors of the number 640,683 excluding 640,683?
A: 326,517
The factors of the number 640,683 are: 1, 3, 9, 27, 61, 183, 389, 549, 1167, 1647, 3501, 10503, 23729, 71187, 213561, 640683.
If you add them up, you will get the total of 641,009. Now subtract 640,683 to get 326,517