69542180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{80863}}^1$

素因数の和:80915

約数の個数: 24

約数和(自身を含む): 149436672

約数和(自身を除く): 79894492

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 80863, 161726, 323452, 404315, 808630, 1617260, 3477109, 6954218, 13908436, 17385545, 34771090, 69542180]

約数ペア:

[(1, 69542180), (2, 34771090), (4, 17385545), (5, 13908436), (10, 6954218), (20, 3477109), (43, 1617260), (86, 808630), (172, 404315), (215, 323452), (430, 161726), (860, 80863)]