Q: What is the sum of all factors of the number 16,440 excluding 16,440?

 A: 33,240

Why is 33,240 the sum of all factors of 16,440, excluding 16,440?

The factors of the number 16,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1370, 1644, 2055, 2740, 3288, 4110, 5480, 8220, 16440.

If you add them up, you will get the total of 16,473. Now subtract 16,440 to get 33,240


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