81855856

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:601

約数の個数: 40

約数和(自身を含む): 161708400

約数和(自身を除く): 79852544

約数列:

[1, 2, 4, 8, 16, 107, 137, 214, 274, 349, 428, 548, 698, 856, 1096, 1396, 1712, 2192, 2792, 5584, 14659, 29318, 37343, 47813, 58636, 74686, 95626, 117272, 149372, 191252, 234544, 298744, 382504, 597488, 765008, 5115991, 10231982, 20463964, 40927928, 81855856]

約数ペア:

[(1, 81855856), (2, 40927928), (4, 20463964), (8, 10231982), (16, 5115991), (107, 765008), (137, 597488), (214, 382504), (274, 298744), (349, 234544), (428, 191252), (548, 149372), (698, 117272), (856, 95626), (1096, 74686), (1396, 58636), (1712, 47813), (2192, 37343), (2792, 29318), (5584, 14659)]