19847740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90217}}^1$

素因数の和:90237

約数の個数: 24

約数和(自身を含む): 45469872

約数和(自身を除く): 25622132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90217, 180434, 360868, 451085, 902170, 992387, 1804340, 1984774, 3969548, 4961935, 9923870, 19847740]

約数ペア:

[(1, 19847740), (2, 9923870), (4, 4961935), (5, 3969548), (10, 1984774), (11, 1804340), (20, 992387), (22, 902170), (44, 451085), (55, 360868), (110, 180434), (220, 90217)]