Q: What is the sum of all factors of the number 518,440 excluding 518,440?
A: 739,040
The factors of the number 518,440 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 997, 1994, 3988, 4985, 7976, 9970, 12961, 19940, 25922, 39880, 51844, 64805, 103688, 129610, 259220, 518440.
If you add them up, you will get the total of 519,179. Now subtract 518,440 to get 739,040