20684320

素因数分解:

$2^5\times 5^1\times {\mathrm{129277}}^1$

素因数の和:129292

約数の個数: 24

約数和(自身を含む): 48867084

約数和(自身を除く): 28182764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129277, 258554, 517108, 646385, 1034216, 1292770, 2068432, 2585540, 4136864, 5171080, 10342160, 20684320]

約数ペア:

[(1, 20684320), (2, 10342160), (4, 5171080), (5, 4136864), (8, 2585540), (10, 2068432), (16, 1292770), (20, 1034216), (32, 646385), (40, 517108), (80, 258554), (160, 129277)]