20806956640

素因数分解:

$2^5\times 5^1\times {\mathrm{130043479}}^1$

素因数の和:130043494

約数の個数: 24

約数和(自身を含む): 49156435440

約数和(自身を除く): 28349478800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130043479, 260086958, 520173916, 650217395, 1040347832, 1300434790, 2080695664, 2600869580, 4161391328, 5201739160, 10403478320, 20806956640]

約数ペア:

[(1, 20806956640), (2, 10403478320), (4, 5201739160), (5, 4161391328), (8, 2600869580), (10, 2080695664), (16, 1300434790), (20, 1040347832), (32, 650217395), (40, 520173916), (80, 260086958), (160, 130043479)]