18884740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3137}}^1$

素因数の和:3196

約数の個数: 48

約数和(自身を含む): 46392192

約数和(自身を除く): 27507452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3137, 6020, 6274, 12548, 15685, 21959, 31370, 43918, 62740, 87836, 109795, 134891, 219590, 269782, 439180, 539564, 674455, 944237, 1348910, 1888474, 2697820, 3776948, 4721185, 9442370, 18884740]

約数ペア:

[(1, 18884740), (2, 9442370), (4, 4721185), (5, 3776948), (7, 2697820), (10, 1888474), (14, 1348910), (20, 944237), (28, 674455), (35, 539564), (43, 439180), (70, 269782), (86, 219590), (140, 134891), (172, 109795), (215, 87836), (301, 62740), (430, 43918), (602, 31370), (860, 21959), (1204, 15685), (1505, 12548), (3010, 6274), (3137, 6020)]