20001158980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90914359}}^1$

素因数の和:90914379

約数の個数: 24

約数和(自身を含む): 45820837440

約数和(自身を除く): 25819678460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90914359, 181828718, 363657436, 454571795, 909143590, 1000057949, 1818287180, 2000115898, 4000231796, 5000289745, 10000579490, 20001158980]

約数ペア:

[(1, 20001158980), (2, 10000579490), (4, 5000289745), (5, 4000231796), (10, 2000115898), (11, 1818287180), (20, 1000057949), (22, 909143590), (44, 454571795), (55, 363657436), (110, 181828718), (220, 90914359)]