19890580

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5153}}^1$

素因数の和:5355

約数の個数: 24

約数和(自身を含む): 41994792

約数和(自身を除く): 22104212

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5153, 10306, 20612, 25765, 51530, 103060, 994529, 1989058, 3978116, 4972645, 9945290, 19890580]

約数ペア:

[(1, 19890580), (2, 9945290), (4, 4972645), (5, 3978116), (10, 1989058), (20, 994529), (193, 103060), (386, 51530), (772, 25765), (965, 20612), (1930, 10306), (3860, 5153)]