Q: What is the sum of all factors of the number 896,120 excluding 896,120?

Why is 1,171,000 the sum of all factors of 896,120, excluding 896,120?

The factors of the number 896,120 are: 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 521, 860, 1042, 1720, 2084, 2605, 4168, 5210, 10420, 20840, 22403, 44806, 89612, 112015, 179224, 224030, 448060, 896120.

If you add them up, you will get the total of 896,121. Now subtract 896,120 to get 1,171,000

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