Q: What is the sum of all factors of the number 221,728 excluding 221,728?

 A: 262,490

Why is 262,490 the sum of all factors of 221,728, excluding 221,728?

The factors of the number 221,728 are: 1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 169, 208, 328, 338, 416, 533, 656, 676, 1066, 1312, 1352, 2132, 2704, 4264, 5408, 6929, 8528, 13858, 17056, 27716, 55432, 110864, 221728.

If you add them up, you will get the total of 221,990. Now subtract 221,728 to get 262,490


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