Q: What is the sum of all factors of the number 12,572,840 excluding 12,572,840?

 A: 20,207,320

Why is 20,207,320 the sum of all factors of 12,572,840, excluding 12,572,840?

The factors of the number 12,572,840 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 541, 581, 664, 830, 1082, 1162, 1660, 2164, 2324, 2705, 2905, 3320, 3787, 4328, 4648, 5410, 5810, 7574, 10820, 11620, 15148, 18935, 21640, 23240, 30296, 37870, 44903, 75740, 89806, 151480, 179612, 224515, 314321, 359224, 449030, 628642, 898060, 1257284, 1571605, 1796120, 2514568, 3143210, 6286420, 12572840.

If you add them up, you will get the total of 12,572,860. Now subtract 12,572,840 to get 20,207,320


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