Q: What is the sum of all factors of the number 381,018,816 excluding 381,018,816?

 A: 766,342,872

Why is 766,342,872 the sum of all factors of 381,018,816, excluding 381,018,816?

The factors of the number 381,018,816 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 67, 72, 81, 96, 108, 134, 144, 162, 192, 201, 216, 268, 288, 324, 402, 432, 536, 576, 603, 648, 804, 864, 1072, 1097, 1206, 1296, 1608, 1728, 1809, 2144, 2194, 2412, 2592, 3216, 3291, 3618, 4288, 4388, 4824, 5184, 5427, 6432, 6582, 7236, 8776, 9648, 9873, 10854, 12864, 13164, 14472, 17552, 19296, 19746, 21708, 26328, 28944, 29619, 35104, 38592, 39492, 43416, 52656, 57888, 59238, 70208, 73499, 78984, 86832, 88857, 105312, 115776, 118476, 146998, 157968, 173664, 177714, 210624, 220497, 236952, 293996, 315936, 347328, 355428, 440994, 473904, 587992, 631872, 661491, 710856, 881988, 947808, 1175984, 1322982, 1421712, 1763976, 1895616, 1984473, 2351968, 2645964, 2843424, 3527952, 3968946, 4703936, 5291928, 5686848, 5953419, 7055904, 7937892, 10583856, 11906838, 14111808, 15875784, 21167712, 23813676, 31751568, 42335424, 47627352, 63503136, 95254704, 127006272, 190509408, 381018816.

If you add them up, you will get the total of 381,019,582. Now subtract 381,018,816 to get 766,342,872


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