2008686520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1167841}}^1$

素因数の和:1167895

約数の個数: 32

約数和(自身を含む): 4624654320

約数和(自身を除く): 2615967800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1167841, 2335682, 4671364, 5839205, 9342728, 11678410, 23356820, 46713640, 50217163, 100434326, 200868652, 251085815, 401737304, 502171630, 1004343260, 2008686520]

約数ペア:

[(1, 2008686520), (2, 1004343260), (4, 502171630), (5, 401737304), (8, 251085815), (10, 200868652), (20, 100434326), (40, 50217163), (43, 46713640), (86, 23356820), (172, 11678410), (215, 9342728), (344, 5839205), (430, 4671364), (860, 2335682), (1720, 1167841)]