218745488

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{80897}}^1$

素因数の和:80931

約数の個数: 30

約数和(自身を含む): 458934354

約数和(自身を除く): 240188866

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 80897, 161794, 323588, 647176, 1051661, 1294352, 2103322, 4206644, 8413288, 13671593, 16826576, 27343186, 54686372, 109372744, 218745488]

約数ペア:

[(1, 218745488), (2, 109372744), (4, 54686372), (8, 27343186), (13, 16826576), (16, 13671593), (26, 8413288), (52, 4206644), (104, 2103322), (169, 1294352), (208, 1051661), (338, 647176), (676, 323588), (1352, 161794), (2704, 80897)]