81264896

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 174835584

約数和(自身を除く): 93570688

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 71, 128, 136, 142, 256, 263, 272, 284, 526, 544, 568, 1052, 1088, 1136, 1207, 2104, 2176, 2272, 2414, 4208, 4352, 4471, 4544, 4828, 8416, 8942, 9088, 9656, 16832, 17884, 18176, 18673, 19312, 33664, 35768, 37346, 38624, 67328, 71536, 74692, 77248, 143072, 149384, 154496, 286144, 298768, 308992, 317441, 572288, 597536, 634882, 1144576, 1195072, 1269764, 2390144, 2539528, 4780288, 5079056, 10158112, 20316224, 40632448, 81264896]

約数ペア:

[(1, 81264896), (2, 40632448), (4, 20316224), (8, 10158112), (16, 5079056), (17, 4780288), (32, 2539528), (34, 2390144), (64, 1269764), (68, 1195072), (71, 1144576), (128, 634882), (136, 597536), (142, 572288), (256, 317441), (263, 308992), (272, 298768), (284, 286144), (526, 154496), (544, 149384), (568, 143072), (1052, 77248), (1088, 74692), (1136, 71536), (1207, 67328), (2104, 38624), (2176, 37346), (2272, 35768), (2414, 33664), (4208, 19312), (4352, 18673), (4471, 18176), (4544, 17884), (4828, 16832), (8416, 9656), (8942, 9088)]