Q: What is the sum of all factors of the number 517,978 excluding 517,978?
A: 321,542
The factors of the number 517,978 are: 1, 2, 19, 38, 43, 86, 317, 634, 817, 1634, 6023, 12046, 13631, 27262, 258989, 517978.
If you add them up, you will get the total of 518,299. Now subtract 517,978 to get 321,542