18193780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{82699}}^1$

素因数の和:82719

約数の個数: 24

約数和(自身を含む): 41680800

約数和(自身を除く): 23487020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 82699, 165398, 330796, 413495, 826990, 909689, 1653980, 1819378, 3638756, 4548445, 9096890, 18193780]

約数ペア:

[(1, 18193780), (2, 9096890), (4, 4548445), (5, 3638756), (10, 1819378), (11, 1653980), (20, 909689), (22, 826990), (44, 413495), (55, 330796), (110, 165398), (220, 82699)]