18418180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83719}}^1$

素因数の和:83739

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 23776700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 83719, 167438, 334876, 418595, 837190, 920909, 1674380, 1841818, 3683636, 4604545, 9209090, 18418180]

約数ペア:

[(1, 18418180), (2, 9209090), (4, 4604545), (5, 3683636), (10, 1841818), (11, 1674380), (20, 920909), (22, 837190), (44, 418595), (55, 334876), (110, 167438), (220, 83719)]