Q: What is the sum of all factors of the number 989,200 excluding 989,200?

Why is 1,388,314 the sum of all factors of 989,200, excluding 989,200?

The factors of the number 989,200 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2473, 4946, 9892, 12365, 19784, 24730, 39568, 49460, 61825, 98920, 123650, 197840, 247300, 494600, 989200.

If you add them up, you will get the total of 989,201. Now subtract 989,200 to get 1,388,314

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