858710

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2047

約数の個数: 16

約数和(自身を含む): 1582416

約数和(自身を除く): 723706

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1997, 3994, 9985, 19970, 85871, 171742, 429355, 858710]

約数ペア:

[(1, 858710), (2, 429355), (5, 171742), (10, 85871), (43, 19970), (86, 9985), (215, 3994), (430, 1997)]