18475880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3323}}^1$

素因数の和:3473

約数の個数: 32

約数和(自身を含む): 41882400

約数和(自身を除く): 23406520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3323, 5560, 6646, 13292, 16615, 26584, 33230, 66460, 132920, 461897, 923794, 1847588, 2309485, 3695176, 4618970, 9237940, 18475880]

約数ペア:

[(1, 18475880), (2, 9237940), (4, 4618970), (5, 3695176), (8, 2309485), (10, 1847588), (20, 923794), (40, 461897), (139, 132920), (278, 66460), (556, 33230), (695, 26584), (1112, 16615), (1390, 13292), (2780, 6646), (3323, 5560)]