20008340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90947}}^1$

素因数の和:90967

約数の個数: 24

約数和(自身を含む): 45837792

約数和(自身を除く): 25829452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90947, 181894, 363788, 454735, 909470, 1000417, 1818940, 2000834, 4001668, 5002085, 10004170, 20008340]

約数ペア:

[(1, 20008340), (2, 10004170), (4, 5002085), (5, 4001668), (10, 2000834), (11, 1818940), (20, 1000417), (22, 909470), (44, 454735), (55, 363788), (110, 181894), (220, 90947)]