66618040

素因数分解:

$2^3\times 5^1\times {\mathrm{1665451}}^1$

素因数の和:1665462

約数の個数: 16

約数和(自身を含む): 149890680

約数和(自身を除く): 83272640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1665451, 3330902, 6661804, 8327255, 13323608, 16654510, 33309020, 66618040]

約数ペア:

[(1, 66618040), (2, 33309020), (4, 16654510), (5, 13323608), (8, 8327255), (10, 6661804), (20, 3330902), (40, 1665451)]