Q: What is the sum of all factors of the number 1,445,880 excluding 1,445,880?

Why is 2,892,120 the sum of all factors of 1,445,880, excluding 1,445,880?

The factors of the number 1,445,880 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 12049, 24098, 36147, 48196, 60245, 72294, 96392, 120490, 144588, 180735, 240980, 289176, 361470, 481960, 722940, 1445880.

If you add them up, you will get the total of 1,445,882. Now subtract 1,445,880 to get 2,892,120

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