Q: What is the sum of all factors of the number 4,389,640 excluding 4,389,640?

 A: 5,487,140

Why is 5,487,140 the sum of all factors of 4,389,640, excluding 4,389,640?

The factors of the number 4,389,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 109741, 219482, 438964, 548705, 877928, 1097410, 2194820, 4389640.

If you add them up, you will get the total of 4,389,645. Now subtract 4,389,640 to get 5,487,140


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