19172120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43573}}^1$

素因数の和:43595

約数の個数: 32

約数和(自身を含む): 47059920

約数和(自身を除く): 27887800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43573, 87146, 174292, 217865, 348584, 435730, 479303, 871460, 958606, 1742920, 1917212, 2396515, 3834424, 4793030, 9586060, 19172120]

約数ペア:

[(1, 19172120), (2, 9586060), (4, 4793030), (5, 3834424), (8, 2396515), (10, 1917212), (11, 1742920), (20, 958606), (22, 871460), (40, 479303), (44, 435730), (55, 348584), (88, 217865), (110, 174292), (220, 87146), (440, 43573)]