18744220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85201}}^1$

素因数の和:85221

約数の個数: 24

約数和(自身を含む): 42941808

約数和(自身を除く): 24197588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85201, 170402, 340804, 426005, 852010, 937211, 1704020, 1874422, 3748844, 4686055, 9372110, 18744220]

約数ペア:

[(1, 18744220), (2, 9372110), (4, 4686055), (5, 3748844), (10, 1874422), (11, 1704020), (20, 937211), (22, 852010), (44, 426005), (55, 340804), (110, 170402), (220, 85201)]