2069405

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 24

約数和(自身を含む): 2810880

約数和(自身を除く): 741475

約数列:

[1, 5, 13, 31, 65, 79, 155, 169, 395, 403, 845, 1027, 2015, 2449, 5135, 5239, 12245, 13351, 26195, 31837, 66755, 159185, 413881, 2069405]

約数ペア:

[(1, 2069405), (5, 413881), (13, 159185), (31, 66755), (65, 31837), (79, 26195), (155, 13351), (169, 12245), (395, 5239), (403, 5135), (845, 2449), (1027, 2015)]