20834540

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2417}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 43872192

約数和(自身を除く): 23037652

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 2417, 4310, 4834, 8620, 9668, 12085, 24170, 48340, 1041727, 2083454, 4166908, 5208635, 10417270, 20834540]

約数ペア:

[(1, 20834540), (2, 10417270), (4, 5208635), (5, 4166908), (10, 2083454), (20, 1041727), (431, 48340), (862, 24170), (1724, 12085), (2155, 9668), (2417, 8620), (4310, 4834)]