128156

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 268800

約数和(自身を除く): 140644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 199, 322, 398, 644, 796, 1393, 2786, 4577, 5572, 9154, 18308, 32039, 64078, 128156]

約数ペア:

[(1, 128156), (2, 64078), (4, 32039), (7, 18308), (14, 9154), (23, 5572), (28, 4577), (46, 2786), (92, 1393), (161, 796), (199, 644), (322, 398)]