Q: What is the sum of all factors of the number 1,656,380 excluding 1,656,380?

Why is 2,138,740 the sum of all factors of 1,656,380, excluding 1,656,380?

The factors of the number 1,656,380 are: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 7529, 15058, 30116, 37645, 75290, 82819, 150580, 165638, 331276, 414095, 828190, 1656380.

If you add them up, you will get the total of 1,656,382. Now subtract 1,656,380 to get 2,138,740

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