1717420

素因数分解:

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

素因数の和:2049

約数の個数: 24

約数和(自身を含む): 3692304

約数和(自身を除く): 1974884

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1997, 3994, 7988, 9985, 19970, 39940, 85871, 171742, 343484, 429355, 858710, 1717420]

約数ペア:

[(1, 1717420), (2, 858710), (4, 429355), (5, 343484), (10, 171742), (20, 85871), (43, 39940), (86, 19970), (172, 9985), (215, 7988), (430, 3994), (860, 1997)]