81282520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184733}}^1$

素因数の和:184755

約数の個数: 32

約数和(自身を含む): 199512720

約数和(自身を除く): 118230200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184733, 369466, 738932, 923665, 1477864, 1847330, 2032063, 3694660, 4064126, 7389320, 8128252, 10160315, 16256504, 20320630, 40641260, 81282520]

約数ペア:

[(1, 81282520), (2, 40641260), (4, 20320630), (5, 16256504), (8, 10160315), (10, 8128252), (11, 7389320), (20, 4064126), (22, 3694660), (40, 2032063), (44, 1847330), (55, 1477864), (88, 923665), (110, 738932), (220, 369466), (440, 184733)]