18965320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43103}}^1$

素因数の和:43125

約数の個数: 32

約数和(自身を含む): 46552320

約数和(自身を除く): 27587000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43103, 86206, 172412, 215515, 344824, 431030, 474133, 862060, 948266, 1724120, 1896532, 2370665, 3793064, 4741330, 9482660, 18965320]

約数ペア:

[(1, 18965320), (2, 9482660), (4, 4741330), (5, 3793064), (8, 2370665), (10, 1896532), (11, 1724120), (20, 948266), (22, 862060), (40, 474133), (44, 431030), (55, 344824), (88, 215515), (110, 172412), (220, 86206), (440, 43103)]