210004390

素因数分解:

$2^1\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{20369}}^1$

素因数の和:21407

約数の個数: 16

約数和(自身を含む): 378393120

約数和(自身を除く): 168388730

約数列:

[1, 2, 5, 10, 1031, 2062, 5155, 10310, 20369, 40738, 101845, 203690, 21000439, 42000878, 105002195, 210004390]

約数ペア:

[(1, 210004390), (2, 105002195), (5, 42000878), (10, 21000439), (1031, 203690), (2062, 101845), (5155, 40738), (10310, 20369)]