18233720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10601}}^1$

素因数の和:10655

約数の個数: 32

約数和(自身を含む): 41983920

約数和(自身を除く): 23750200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10601, 21202, 42404, 53005, 84808, 106010, 212020, 424040, 455843, 911686, 1823372, 2279215, 3646744, 4558430, 9116860, 18233720]

約数ペア:

[(1, 18233720), (2, 9116860), (4, 4558430), (5, 3646744), (8, 2279215), (10, 1823372), (20, 911686), (40, 455843), (43, 424040), (86, 212020), (172, 106010), (215, 84808), (344, 53005), (430, 42404), (860, 21202), (1720, 10601)]