66402520

素因数分解:

$2^3\times 5^1\times {\mathrm{1660063}}^1$

素因数の和:1660074

約数の個数: 16

約数和(自身を含む): 149405760

約数和(自身を除く): 83003240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1660063, 3320126, 6640252, 8300315, 13280504, 16600630, 33201260, 66402520]

約数ペア:

[(1, 66402520), (2, 33201260), (4, 16600630), (5, 13280504), (8, 8300315), (10, 6640252), (20, 3320126), (40, 1660063)]