Q: What is the sum of all factors of the number 338,840 excluding 338,840?

 A: 445,240

Why is 445,240 the sum of all factors of 338,840, excluding 338,840?

The factors of the number 338,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 197, 215, 344, 394, 430, 788, 860, 985, 1576, 1720, 1970, 3940, 7880, 8471, 16942, 33884, 42355, 67768, 84710, 169420, 338840.

If you add them up, you will get the total of 339,285. Now subtract 338,840 to get 445,240


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