Q: What is the sum of all factors of the number 30,420,310 excluding 30,420,310?

Why is 28,055,210 the sum of all factors of 30,420,310, excluding 30,420,310?

The factors of the number 30,420,310 are: 1, 2, 5, 10, 17, 34, 85, 127, 170, 254, 635, 1270, 1409, 2159, 2818, 4318, 7045, 10795, 14090, 21590, 23953, 47906, 119765, 178943, 239530, 357886, 894715, 1789430, 3042031, 6084062, 15210155, 30420310.

If you add them up, you will get the total of 30,420,338. Now subtract 30,420,310 to get 28,055,210

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