8129540

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1307}}^1$

素因数の和:1627

約数の個数: 24

約数和(自身を含む): 17140032

約数和(自身を除く): 9010492

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1307, 1555, 2614, 3110, 5228, 6220, 6535, 13070, 26140, 406477, 812954, 1625908, 2032385, 4064770, 8129540]

約数ペア:

[(1, 8129540), (2, 4064770), (4, 2032385), (5, 1625908), (10, 812954), (20, 406477), (311, 26140), (622, 13070), (1244, 6535), (1307, 6220), (1555, 5228), (2614, 3110)]