Q: What is the sum of all factors of the number 308,440 excluding 308,440?

 A: 449,720

Why is 449,720 the sum of all factors of 308,440, excluding 308,440?

The factors of the number 308,440 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 701, 1402, 2804, 3505, 5608, 7010, 7711, 14020, 15422, 28040, 30844, 38555, 61688, 77110, 154220, 308440.

If you add them up, you will get the total of 308,889. Now subtract 308,440 to get 449,720


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