51890215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19471}}^1$

素因数の和:19530

約数の個数: 16

約数和(自身を含む): 68697216

約数和(自身を除く): 16807001

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 19471, 97355, 253123, 798311, 1265615, 3991555, 10378043, 51890215]

約数ペア:

[(1, 51890215), (5, 10378043), (13, 3991555), (41, 1265615), (65, 798311), (205, 253123), (533, 97355), (2665, 19471)]