Q: What is the sum of all factors of the number 615,040 excluding 615,040?

A: 904,250

Why is 904,250 the sum of all factors of 615,040, excluding 615,040?

The factors of the number 615,040 are: 1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 961, 992, 1240, 1922, 1984, 2480, 3844, 3968, 4805, 4960, 7688, 9610, 9920, 15376, 19220, 19840, 30752, 38440, 61504, 76880, 123008, 153760, 307520, 615040.

If you add them up, you will get the total of 615,944. Now subtract 615,040 to get 904,250