128245012

素因数分解:

$2^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{20177}}^1$

素因数の和:20415

約数の個数: 24

約数和(自身を含む): 257632704

約数和(自身を除く): 129387692

約数列:

[1, 2, 4, 7, 14, 28, 227, 454, 908, 1589, 3178, 6356, 20177, 40354, 80708, 141239, 282478, 564956, 4580179, 9160358, 18320716, 32061253, 64122506, 128245012]

約数ペア:

[(1, 128245012), (2, 64122506), (4, 32061253), (7, 18320716), (14, 9160358), (28, 4580179), (227, 564956), (454, 282478), (908, 141239), (1589, 80708), (3178, 40354), (6356, 20177)]