18200180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21163}}^1$

素因数の和:21215

約数の個数: 24

約数和(自身を含む): 39111072

約数和(自身を除く): 20910892

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 21163, 42326, 84652, 105815, 211630, 423260, 910009, 1820018, 3640036, 4550045, 9100090, 18200180]

約数ペア:

[(1, 18200180), (2, 9100090), (4, 4550045), (5, 3640036), (10, 1820018), (20, 910009), (43, 423260), (86, 211630), (172, 105815), (215, 84652), (430, 42326), (860, 21163)]