78871912

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 174182400

約数和(自身を除く): 95310488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 83, 142, 166, 239, 284, 332, 478, 497, 568, 581, 664, 956, 994, 1162, 1673, 1912, 1988, 2324, 3346, 3976, 4648, 5893, 6692, 11786, 13384, 16969, 19837, 23572, 33938, 39674, 41251, 47144, 67876, 79348, 82502, 118783, 135752, 138859, 158696, 165004, 237566, 277718, 330008, 475132, 555436, 950264, 1110872, 1408427, 2816854, 5633708, 9858989, 11267416, 19717978, 39435956, 78871912]

約数ペア:

[(1, 78871912), (2, 39435956), (4, 19717978), (7, 11267416), (8, 9858989), (14, 5633708), (28, 2816854), (56, 1408427), (71, 1110872), (83, 950264), (142, 555436), (166, 475132), (239, 330008), (284, 277718), (332, 237566), (478, 165004), (497, 158696), (568, 138859), (581, 135752), (664, 118783), (956, 82502), (994, 79348), (1162, 67876), (1673, 47144), (1912, 41251), (1988, 39674), (2324, 33938), (3346, 23572), (3976, 19837), (4648, 16969), (5893, 13384), (6692, 11786)]