Q: What is the sum of all factors of the number 687,288 excluding 687,288?

Why is 1,276,872 the sum of all factors of 687,288, excluding 687,288?

The factors of the number 687,288 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 4091, 8182, 12273, 16364, 24546, 28637, 32728, 49092, 57274, 85911, 98184, 114548, 171822, 229096, 343644, 687288.

If you add them up, you will get the total of 687,289. Now subtract 687,288 to get 1,276,872

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