Q: What is the sum of all factors of the number 402,420,402 excluding 402,420,402?

 A: 489,769,182

Why is 489,769,182 the sum of all factors of 402,420,402, excluding 402,420,402?

The factors of the number 402,420,402 are: 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 519923, 1039846, 1559769, 3119538, 4679307, 9358614, 22356689, 44713378, 67070067, 134140134, 201210201, 402420402.

If you add them up, you will get the total of 402,420,891. Now subtract 402,420,402 to get 489,769,182


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