128423844

素因数分解:

$2^2\times 3^2\times {\mathrm{181}}^1\times {\mathrm{19709}}^1$

素因数の和:19900

約数の個数: 36

約数和(自身を含む): 326437020

約数和(自身を除く): 198013176

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 181, 362, 543, 724, 1086, 1629, 2172, 3258, 6516, 19709, 39418, 59127, 78836, 118254, 177381, 236508, 354762, 709524, 3567329, 7134658, 10701987, 14269316, 21403974, 32105961, 42807948, 64211922, 128423844]

約数ペア:

[(1, 128423844), (2, 64211922), (3, 42807948), (4, 32105961), (6, 21403974), (9, 14269316), (12, 10701987), (18, 7134658), (36, 3567329), (181, 709524), (362, 354762), (543, 236508), (724, 177381), (1086, 118254), (1629, 78836), (2172, 59127), (3258, 39418), (6516, 19709)]