Q: What is the sum of all factors of the number 128,760 excluding 128,760?

 A: 281,640

Why is 281,640 the sum of all factors of 128,760, excluding 128,760?

The factors of the number 128,760 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 37, 40, 58, 60, 74, 87, 111, 116, 120, 145, 148, 174, 185, 222, 232, 290, 296, 348, 370, 435, 444, 555, 580, 696, 740, 870, 888, 1073, 1110, 1160, 1480, 1740, 2146, 2220, 3219, 3480, 4292, 4440, 5365, 6438, 8584, 10730, 12876, 16095, 21460, 25752, 32190, 42920, 64380, 128760.

If you add them up, you will get the total of 129,041. Now subtract 128,760 to get 281,640


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