Q: What is the sum of all factors of the number 42,122,240 excluding 42,122,240?

 A: 64,485,520

Why is 64,485,520 the sum of all factors of 42,122,240, excluding 42,122,240?

The factors of the number 42,122,240 are: 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 433, 512, 608, 640, 760, 866, 1024, 1216, 1280, 1520, 1732, 2165, 2432, 2560, 3040, 3464, 4330, 4864, 5120, 6080, 6928, 8227, 8660, 9728, 12160, 13856, 16454, 17320, 19456, 24320, 27712, 32908, 34640, 41135, 48640, 55424, 65816, 69280, 82270, 97280, 110848, 131632, 138560, 164540, 221696, 263264, 277120, 329080, 443392, 526528, 554240, 658160, 1053056, 1108480, 1316320, 2106112, 2216960, 2632640, 4212224, 5265280, 8424448, 10530560, 21061120, 42122240.

If you add them up, you will get the total of 42,122,304. Now subtract 42,122,240 to get 64,485,520


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