28800440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10141}}^1$

素因数の和:10223

約数の個数: 32

約数和(自身を含む): 65720160

約数和(自身を除く): 36919720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10141, 20282, 40564, 50705, 81128, 101410, 202820, 405640, 720011, 1440022, 2880044, 3600055, 5760088, 7200110, 14400220, 28800440]

約数ペア:

[(1, 28800440), (2, 14400220), (4, 7200110), (5, 5760088), (8, 3600055), (10, 2880044), (20, 1440022), (40, 720011), (71, 405640), (142, 202820), (284, 101410), (355, 81128), (568, 50705), (710, 40564), (1420, 20282), (2840, 10141)]