81649318

素因数分解:

$2^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1\times {\mathrm{881}}^1$

素因数の和:1343

約数の個数: 16

約数和(自身を含む): 123832800

約数和(自身を除く): 42183482

約数列:

[1, 2, 149, 298, 311, 622, 881, 1762, 46339, 92678, 131269, 262538, 273991, 547982, 40824659, 81649318]

約数ペア:

[(1, 81649318), (2, 40824659), (149, 547982), (298, 273991), (311, 262538), (622, 131269), (881, 92678), (1762, 46339)]