90820840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{206411}}^1$

素因数の和:206433

約数の個数: 32

約数和(自身を含む): 222924960

約数和(自身を除く): 132104120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 206411, 412822, 825644, 1032055, 1651288, 2064110, 2270521, 4128220, 4541042, 8256440, 9082084, 11352605, 18164168, 22705210, 45410420, 90820840]

約数ペア:

[(1, 90820840), (2, 45410420), (4, 22705210), (5, 18164168), (8, 11352605), (10, 9082084), (11, 8256440), (20, 4541042), (22, 4128220), (40, 2270521), (44, 2064110), (55, 1651288), (88, 1032055), (110, 825644), (220, 412822), (440, 206411)]