Q: What is the sum of all factors of the number 284,440 excluding 284,440?

 A: 406,040

Why is 406,040 the sum of all factors of 284,440, excluding 284,440?

The factors of the number 284,440 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 547, 1094, 2188, 2735, 4376, 5470, 7111, 10940, 14222, 21880, 28444, 35555, 56888, 71110, 142220, 284440.

If you add them up, you will get the total of 284,846. Now subtract 284,440 to get 406,040


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