18182220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43291}}^1$

素因数の和:43310

約数の個数: 48

約数和(自身を含む): 58184448

約数和(自身を除く): 40002228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43291, 86582, 129873, 173164, 216455, 259746, 303037, 432910, 519492, 606074, 649365, 865820, 909111, 1212148, 1298730, 1515185, 1818222, 2597460, 3030370, 3636444, 4545555, 6060740, 9091110, 18182220]

約数ペア:

[(1, 18182220), (2, 9091110), (3, 6060740), (4, 4545555), (5, 3636444), (6, 3030370), (7, 2597460), (10, 1818222), (12, 1515185), (14, 1298730), (15, 1212148), (20, 909111), (21, 865820), (28, 649365), (30, 606074), (35, 519492), (42, 432910), (60, 303037), (70, 259746), (84, 216455), (105, 173164), (140, 129873), (210, 86582), (420, 43291)]