Q: What is the sum of all factors of the number 643,120 excluding 643,120?
A: 852,320
The factors of the number 643,120 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8039, 16078, 32156, 40195, 64312, 80390, 128624, 160780, 321560, 643120.
If you add them up, you will get the total of 643,972. Now subtract 643,120 to get 852,320