1909405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:324

約数の個数: 16

約数和(自身を含む): 2448000

約数和(自身を除く): 538595

約数列:

[1, 5, 19, 95, 101, 199, 505, 995, 1919, 3781, 9595, 18905, 20099, 100495, 381881, 1909405]

約数ペア:

[(1, 1909405), (5, 381881), (19, 100495), (95, 20099), (101, 18905), (199, 9595), (505, 3781), (995, 1919)]