Q: What is the sum of all factors of the number 399,465 excluding 399,465?
A: 378,135
The factors of the number 399,465 are: 1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 135, 165, 269, 297, 495, 807, 1345, 1485, 2421, 2959, 4035, 7263, 8877, 12105, 14795, 26631, 36315, 44385, 79893, 133155, 399465.
If you add them up, you will get the total of 399,843. Now subtract 399,465 to get 378,135