208021255

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{1423}}^1$

素因数の和:1627

約数の個数: 24

約数和(自身を含む): 272058048

約数和(自身を除く): 64036793

約数列:

[1, 5, 13, 65, 169, 173, 845, 865, 1423, 2249, 7115, 11245, 18499, 29237, 92495, 146185, 240487, 246179, 1202435, 1230895, 3200327, 16001635, 41604251, 208021255]

約数ペア:

[(1, 208021255), (5, 41604251), (13, 16001635), (65, 3200327), (169, 1230895), (173, 1202435), (845, 246179), (865, 240487), (1423, 146185), (2249, 92495), (7115, 29237), (11245, 18499)]