645814268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1334327}}^1$

素因数の和:1334353

約数の個数: 18

約数和(自身を含む): 1242259368

約数和(自身を除く): 596445100

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1334327, 2668654, 5337308, 14677597, 29355194, 58710388, 161453567, 322907134, 645814268]

約数ペア:

[(1, 645814268), (2, 322907134), (4, 161453567), (11, 58710388), (22, 29355194), (44, 14677597), (121, 5337308), (242, 2668654), (484, 1334327)]