18678440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42451}}^1$

素因数の和:42473

約数の個数: 32

約数和(自身を含む): 45848160

約数和(自身を除く): 27169720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42451, 84902, 169804, 212255, 339608, 424510, 466961, 849020, 933922, 1698040, 1867844, 2334805, 3735688, 4669610, 9339220, 18678440]

約数ペア:

[(1, 18678440), (2, 9339220), (4, 4669610), (5, 3735688), (8, 2334805), (10, 1867844), (11, 1698040), (20, 933922), (22, 849020), (40, 466961), (44, 424510), (55, 339608), (88, 212255), (110, 169804), (220, 84902), (440, 42451)]