Q: What is the sum of all factors of the number 1,421,000 excluding 1,421,000?

 A: 2,580,400

Why is 2,580,400 the sum of all factors of 1,421,000, excluding 1,421,000?

The factors of the number 1,421,000 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 49, 50, 56, 58, 70, 98, 100, 116, 125, 140, 145, 175, 196, 200, 203, 232, 245, 250, 280, 290, 350, 392, 406, 490, 500, 580, 700, 725, 812, 875, 980, 1000, 1015, 1160, 1225, 1400, 1421, 1450, 1624, 1750, 1960, 2030, 2450, 2842, 2900, 3500, 3625, 4060, 4900, 5075, 5684, 5800, 6125, 7000, 7105, 7250, 8120, 9800, 10150, 11368, 12250, 14210, 14500, 20300, 24500, 25375, 28420, 29000, 35525, 40600, 49000, 50750, 56840, 71050, 101500, 142100, 177625, 203000, 284200, 355250, 710500, 1421000.

If you add them up, you will get the total of 1,421,002. Now subtract 1,421,000 to get 2,580,400


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