638974376

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{276373}}^1$

素因数の和:276413

約数の個数: 24

約数和(自身を含む): 1272702270

約数和(自身を除く): 633727894

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 276373, 552746, 1105492, 2210984, 4698341, 9396682, 18793364, 37586728, 79871797, 159743594, 319487188, 638974376]

約数ペア:

[(1, 638974376), (2, 319487188), (4, 159743594), (8, 79871797), (17, 37586728), (34, 18793364), (68, 9396682), (136, 4698341), (289, 2210984), (578, 1105492), (1156, 552746), (2312, 276373)]