18882820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85831}}^1$

素因数の和:85851

約数の個数: 24

約数和(自身を含む): 43259328

約数和(自身を除く): 24376508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85831, 171662, 343324, 429155, 858310, 944141, 1716620, 1888282, 3776564, 4720705, 9441410, 18882820]

約数ペア:

[(1, 18882820), (2, 9441410), (4, 4720705), (5, 3776564), (10, 1888282), (11, 1716620), (20, 944141), (22, 858310), (44, 429155), (55, 343324), (110, 171662), (220, 85831)]