Q: What is the sum of all factors of the number 810,444 excluding 810,444?

Why is 1,080,620 the sum of all factors of 810,444, excluding 810,444?

The factors of the number 810,444 are: 1, 2, 3, 4, 6, 12, 67537, 135074, 202611, 270148, 405222, 810444.

If you add them up, you will get the total of 810,445. Now subtract 810,444 to get 1,080,620

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