19904060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90473}}^1$

素因数の和:90493

約数の個数: 24

約数和(自身を含む): 45598896

約数和(自身を除く): 25694836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90473, 180946, 361892, 452365, 904730, 995203, 1809460, 1990406, 3980812, 4976015, 9952030, 19904060]

約数ペア:

[(1, 19904060), (2, 9952030), (4, 4976015), (5, 3980812), (10, 1990406), (11, 1809460), (20, 995203), (22, 904730), (44, 452365), (55, 361892), (110, 180946), (220, 90473)]