Q: What is the sum of all factors of the number 643,620,435 excluding 643,620,435?
A: 386,172,285
The factors of the number 643,620,435 are: 1, 3, 5, 15, 42908029, 128724087, 214540145, 643620435.
If you add them up, you will get the total of 643,620,821. Now subtract 643,620,435 to get 386,172,285