20704420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94111}}^1$

素因数の和:94131

約数の個数: 24

約数和(自身を含む): 47432448

約数和(自身を除く): 26728028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94111, 188222, 376444, 470555, 941110, 1035221, 1882220, 2070442, 4140884, 5176105, 10352210, 20704420]

約数ペア:

[(1, 20704420), (2, 10352210), (4, 5176105), (5, 4140884), (10, 2070442), (11, 1882220), (20, 1035221), (22, 941110), (44, 470555), (55, 376444), (110, 188222), (220, 94111)]