Q: What is the sum of all factors of the number 120,100,040 excluding 120,100,040?

 A: 158,142,520

Why is 158,142,520 the sum of all factors of 120,100,040, excluding 120,100,040?

The factors of the number 120,100,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 193, 235, 331, 376, 386, 470, 662, 772, 940, 965, 1324, 1544, 1655, 1880, 1930, 2648, 3310, 3860, 6620, 7720, 9071, 13240, 15557, 18142, 31114, 36284, 45355, 62228, 63883, 72568, 77785, 90710, 124456, 127766, 155570, 181420, 255532, 311140, 319415, 362840, 511064, 622280, 638830, 1277660, 2555320, 3002501, 6005002, 12010004, 15012505, 24020008, 30025010, 60050020, 120100040.

If you add them up, you will get the total of 120,100,198. Now subtract 120,100,040 to get 158,142,520


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