Q: What is the sum of all factors of the number 121,813,440 excluding 121,813,440?

 A: 320,219,712

Why is 320,219,712 the sum of all factors of 121,813,440, excluding 121,813,440?

The factors of the number 121,813,440 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 18127, 36254, 54381, 72508, 90635, 108762, 126889, 145016, 181270, 217524, 253778, 271905, 290032, 362540, 380667, 435048, 507556, 543810, 580064, 634445, 725080, 761334, 870096, 1015112, 1087620, 1160128, 1268890, 1450160, 1522668, 1740192, 1903335, 2030224, 2175240, 2537780, 2900320, 3045336, 3480384, 3806670, 4060448, 4350480, 5075560, 5800640, 6090672, 7613340, 8120896, 8700960, 10151120, 12181344, 15226680, 17401920, 20302240, 24362688, 30453360, 40604480, 60906720, 121813440.

If you add them up, you will get the total of 121,813,760. Now subtract 121,813,440 to get 320,219,712


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