639405318

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1\times {\mathrm{3407}}^1$

素因数の和:4452

約数の個数: 32

約数和(自身を含む): 1321758720

約数和(自身を除く): 682353402

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 1009, 2018, 3027, 3407, 6054, 6814, 10221, 20442, 31279, 62558, 93837, 105617, 187674, 211234, 316851, 633702, 3437663, 6875326, 10312989, 20625978, 106567553, 213135106, 319702659, 639405318]

約数ペア:

[(1, 639405318), (2, 319702659), (3, 213135106), (6, 106567553), (31, 20625978), (62, 10312989), (93, 6875326), (186, 3437663), (1009, 633702), (2018, 316851), (3027, 211234), (3407, 187674), (6054, 105617), (6814, 93837), (10221, 62558), (20442, 31279)]