Q: What is the sum of all factors of the number 421,430 excluding 421,430?

 A: 415,786

Why is 415,786 the sum of all factors of 421,430, excluding 421,430?

The factors of the number 421,430 are: 1, 2, 5, 10, 17, 34, 37, 67, 74, 85, 134, 170, 185, 335, 370, 629, 670, 1139, 1258, 2278, 2479, 3145, 4958, 5695, 6290, 11390, 12395, 24790, 42143, 84286, 210715, 421430.

If you add them up, you will get the total of 421,845. Now subtract 421,430 to get 415,786


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