Q: What is the sum of all factors of the number 75,640 excluding 75,640?

 A: 102,920

Why is 102,920 the sum of all factors of 75,640, excluding 75,640?

The factors of the number 75,640 are: 1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 3782, 7564, 9455, 15128, 18910, 37820, 75640.

If you add them up, you will get the total of 75,742. Now subtract 75,640 to get 102,920


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