Q: What is the sum of all factors of the number 8,138,625 excluding 8,138,625?

Why is 6,642,687 the sum of all factors of 8,138,625, excluding 8,138,625?

The factors of the number 8,138,625 are: 1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 825, 1375, 1973, 4125, 5919, 9865, 21703, 29595, 49325, 65109, 108515, 147975, 246625, 325545, 542575, 739875, 1627725, 2712875, 8138625.

If you add them up, you will get the total of 8,138,631. Now subtract 8,138,625 to get 6,642,687

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