858711290

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1997003}}^1$

素因数の和:1997053

約数の個数: 16

約数和(自身を含む): 1581627168

約数和(自身を除く): 722915878

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1997003, 3994006, 9985015, 19970030, 85871129, 171742258, 429355645, 858711290]

約数ペア:

[(1, 858711290), (2, 429355645), (5, 171742258), (10, 85871129), (43, 19970030), (86, 9985015), (215, 3994006), (430, 1997003)]