18781180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85369}}^1$

素因数の和:85389

約数の個数: 24

約数和(自身を含む): 43026480

約数和(自身を除く): 24245300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85369, 170738, 341476, 426845, 853690, 939059, 1707380, 1878118, 3756236, 4695295, 9390590, 18781180]

約数ペア:

[(1, 18781180), (2, 9390590), (4, 4695295), (5, 3756236), (10, 1878118), (11, 1707380), (20, 939059), (22, 853690), (44, 426845), (55, 341476), (110, 170738), (220, 85369)]