Q: What is the sum of all factors of the number 1,420,605 excluding 1,420,605?

 A: 1,257,795

Why is 1,257,795 the sum of all factors of 1,420,605, excluding 1,420,605?

The factors of the number 1,420,605 are: 1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 619, 765, 1857, 2295, 3095, 5571, 9285, 10523, 16713, 27855, 31569, 52615, 83565, 94707, 157845, 284121, 473535, 1420605.

If you add them up, you will get the total of 1,420,606. Now subtract 1,420,605 to get 1,257,795


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