18128440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41201}}^1$

素因数の和:41223

約数の個数: 32

約数和(自身を含む): 44498160

約数和(自身を除く): 26369720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41201, 82402, 164804, 206005, 329608, 412010, 453211, 824020, 906422, 1648040, 1812844, 2266055, 3625688, 4532110, 9064220, 18128440]

約数ペア:

[(1, 18128440), (2, 9064220), (4, 4532110), (5, 3625688), (8, 2266055), (10, 1812844), (11, 1648040), (20, 906422), (22, 824020), (40, 453211), (44, 412010), (55, 329608), (88, 206005), (110, 164804), (220, 82402), (440, 41201)]