Q: What is the sum of all factors of the number 1,242,642 excluding 1,242,642?

 A: 1,278,510

Why is 1,278,510 the sum of all factors of 1,242,642, excluding 1,242,642?

The factors of the number 1,242,642 are: 1, 2, 3, 6, 71, 142, 213, 426, 2917, 5834, 8751, 17502, 207107, 414214, 621321, 1242642.

If you add them up, you will get the total of 1,242,643. Now subtract 1,242,642 to get 1,278,510


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