638073215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{14851}}^1$

素因数の和:15530

約数の個数: 16

約数和(自身を含む): 825890016

約数和(自身を除く): 187816801

約数列:

[1, 5, 13, 65, 661, 3305, 8593, 14851, 42965, 74255, 193063, 965315, 9816511, 49082555, 127614643, 638073215]

約数ペア:

[(1, 638073215), (5, 127614643), (13, 49082555), (65, 9816511), (661, 965315), (3305, 193063), (8593, 74255), (14851, 42965)]