28428335

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2027

約数の個数: 24

約数和(自身を含む): 39132720

約数和(自身を除く): 10704385

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1979, 2873, 9895, 14365, 25727, 33643, 128635, 168215, 334451, 437359, 1672255, 2186795, 5685667, 28428335]

約数ペア:

[(1, 28428335), (5, 5685667), (13, 2186795), (17, 1672255), (65, 437359), (85, 334451), (169, 168215), (221, 128635), (845, 33643), (1105, 25727), (1979, 14365), (2873, 9895)]