20565267652

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{661603}}^1$

素因数の和:662035

約数の個数: 24

約数和(自身を含む): 37976069600

約数和(自身を除く): 17410801948

約数列:

[1, 2, 4, 19, 38, 76, 409, 818, 1636, 7771, 15542, 31084, 661603, 1323206, 2646412, 12570457, 25140914, 50281828, 270595627, 541191254, 1082382508, 5141316913, 10282633826, 20565267652]

約数ペア:

[(1, 20565267652), (2, 10282633826), (4, 5141316913), (19, 1082382508), (38, 541191254), (76, 270595627), (409, 50281828), (818, 25140914), (1636, 12570457), (7771, 2646412), (15542, 1323206), (31084, 661603)]