Q: What is the sum of all factors of the number 73,640 excluding 73,640?

 A: 116,440

Why is 116,440 the sum of all factors of 73,640, excluding 73,640?

The factors of the number 73,640 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 1052, 1315, 1841, 2104, 2630, 3682, 5260, 7364, 9205, 10520, 14728, 18410, 36820, 73640.

If you add them up, you will get the total of 73,756. Now subtract 73,640 to get 116,440


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