639232621105

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{15649}}^1\times {\mathrm{48341}}^1$

素因数の和:64021

約数の個数: 24

約数和(自身を含む): 830694425400

約数和(自身を除く): 191461804295

約数列:

[1, 5, 13, 65, 169, 845, 15649, 48341, 78245, 203437, 241705, 628433, 1017185, 2644681, 3142165, 8169629, 13223405, 40848145, 756488309, 3782441545, 9834348017, 49171740085, 127846524221, 639232621105]

約数ペア:

[(1, 639232621105), (5, 127846524221), (13, 49171740085), (65, 9834348017), (169, 3782441545), (845, 756488309), (15649, 40848145), (48341, 13223405), (78245, 8169629), (203437, 3142165), (241705, 2644681), (628433, 1017185)]