12586405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8419}}^1$

素因数の和:8460

約数の個数: 16

約数和(自身を含む): 16974720

約数和(自身を除く): 4388315

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 8419, 42095, 109447, 193637, 547235, 968185, 2517281, 12586405]

約数ペア:

[(1, 12586405), (5, 2517281), (13, 968185), (23, 547235), (65, 193637), (115, 109447), (299, 42095), (1495, 8419)]