Q: What is the sum of all factors of the number 639,480 excluding 639,480?
A: 1,305,600
The factors of the number 639,480 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2920, 4380, 5329, 8760, 10658, 15987, 21316, 26645, 31974, 42632, 53290, 63948, 79935, 106580, 127896, 159870, 213160, 319740, 639480.
If you add them up, you will get the total of 639,481. Now subtract 639,480 to get 1,305,600