128624180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149563}}^1$

素因数の和:149615

約数の個数: 24

約数和(自身を含む): 276394272

約数和(自身を除く): 147770092

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 149563, 299126, 598252, 747815, 1495630, 2991260, 6431209, 12862418, 25724836, 32156045, 64312090, 128624180]

約数ペア:

[(1, 128624180), (2, 64312090), (4, 32156045), (5, 25724836), (10, 12862418), (20, 6431209), (43, 2991260), (86, 1495630), (172, 747815), (215, 598252), (430, 299126), (860, 149563)]