1789968220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1260541}}^1$

素因数の和:1260621

約数の個数: 24

約数和(自身を含む): 3811879008

約数和(自身を除く): 2021910788

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1260541, 2521082, 5042164, 6302705, 12605410, 25210820, 89498411, 178996822, 357993644, 447492055, 894984110, 1789968220]

約数ペア:

[(1, 1789968220), (2, 894984110), (4, 447492055), (5, 357993644), (10, 178996822), (20, 89498411), (71, 25210820), (142, 12605410), (284, 6302705), (355, 5042164), (710, 2521082), (1420, 1260541)]