66608840

素因数分解:

$2^3\times 5^1\times {\mathrm{1665221}}^1$

素因数の和:1665232

約数の個数: 16

約数和(自身を含む): 149869980

約数和(自身を除く): 83261140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1665221, 3330442, 6660884, 8326105, 13321768, 16652210, 33304420, 66608840]

約数ペア:

[(1, 66608840), (2, 33304420), (4, 16652210), (5, 13321768), (8, 8326105), (10, 6660884), (20, 3330442), (40, 1665221)]