Q: What is the sum of all factors of the number 384,640 excluding 384,640?

 A: 536,420

Why is 536,420 the sum of all factors of 384,640, excluding 384,640?

The factors of the number 384,640 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 601, 640, 1202, 2404, 3005, 4808, 6010, 9616, 12020, 19232, 24040, 38464, 48080, 76928, 96160, 192320, 384640.

If you add them up, you will get the total of 385,176. Now subtract 384,640 to get 536,420


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