Q: What is the sum of all factors of the number 81,380 excluding 81,380?

 A: 103,252

Why is 103,252 the sum of all factors of 81,380, excluding 81,380?

The factors of the number 81,380 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 626, 1252, 1565, 3130, 4069, 6260, 8138, 16276, 20345, 40690, 81380.

If you add them up, you will get the total of 81,483. Now subtract 81,380 to get 103,252


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