66480520

素因数分解:

$2^3\times 5^1\times {\mathrm{1662013}}^1$

素因数の和:1662024

約数の個数: 16

約数和(自身を含む): 149581260

約数和(自身を除く): 83100740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1662013, 3324026, 6648052, 8310065, 13296104, 16620130, 33240260, 66480520]

約数ペア:

[(1, 66480520), (2, 33240260), (4, 16620130), (5, 13296104), (8, 8310065), (10, 6648052), (20, 3324026), (40, 1662013)]