201870290

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{15661}}^1$

素因数の和:16957

約数の個数: 16

約数和(自身を含む): 363671640

約数和(自身を除く): 161801350

約数列:

[1, 2, 5, 10, 1289, 2578, 6445, 12890, 15661, 31322, 78305, 156610, 20187029, 40374058, 100935145, 201870290]

約数ペア:

[(1, 201870290), (2, 100935145), (5, 40374058), (10, 20187029), (1289, 156610), (2578, 78305), (6445, 31322), (12890, 15661)]