81688408

素因数分解:

$2^3\times {\mathrm{191}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 155324160

約数和(自身を除く): 73635752

約数列:

[1, 2, 4, 8, 191, 193, 277, 382, 386, 554, 764, 772, 1108, 1528, 1544, 2216, 36863, 52907, 53461, 73726, 105814, 106922, 147452, 211628, 213844, 294904, 423256, 427688, 10211051, 20422102, 40844204, 81688408]

約数ペア:

[(1, 81688408), (2, 40844204), (4, 20422102), (8, 10211051), (191, 427688), (193, 423256), (277, 294904), (382, 213844), (386, 211628), (554, 147452), (764, 106922), (772, 105814), (1108, 73726), (1528, 53461), (1544, 52907), (2216, 36863)]