Q: What is the sum of all factors of the number 780,810 excluding 780,810?

Why is 1,204,662 the sum of all factors of 780,810, excluding 780,810?

The factors of the number 780,810 are: 1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 1531, 3062, 4593, 7655, 9186, 15310, 22965, 26027, 45930, 52054, 78081, 130135, 156162, 260270, 390405, 780810.

If you add them up, you will get the total of 780,811. Now subtract 780,810 to get 1,204,662

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