20640329.000000000

素因数分解:

$2^5\times {\mathrm{827}}^1\times {\mathrm{5351}}^1$

素因数の和:6188

約数の個数: 24

約数和(自身を含む): 279181728

約数和(自身を除く): 137572864

約数列:

[1, 2, 4, 8, 16, 32, 827, 1654, 3308, 5351, 6616, 10702, 13232, 21404, 26464, 42808, 85616, 171232, 4425277, 8850554, 17701108, 35402216, 70804432, 141608864]

約数ペア:

[(1, 141608864), (2, 70804432), (4, 35402216), (8, 17701108), (16, 8850554), (32, 4425277), (827, 171232), (1654, 85616), (3308, 42808), (5351, 26464), (6616, 21404), (10702, 13232)]