Q: What is the sum of all factors of the number 507,978 excluding 507,978?
A: 672,822
The factors of the number 507,978 are: 1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 409, 414, 621, 818, 1227, 1242, 2454, 3681, 7362, 9407, 11043, 18814, 22086, 28221, 56442, 84663, 169326, 253989, 507978.
If you add them up, you will get the total of 508,650. Now subtract 507,978 to get 672,822