28986781808

素因数分解:

$2^4\times {\mathrm{1663}}^1\times {\mathrm{1089401}}^1$

素因数の和:1091072

約数の個数: 20

約数和(自身を含む): 56195712768

約数和(自身を除く): 27208930960

約数列:

[1, 2, 4, 8, 16, 1663, 3326, 6652, 13304, 26608, 1089401, 2178802, 4357604, 8715208, 17430416, 1811673863, 3623347726, 7246695452, 14493390904, 28986781808]

約数ペア:

[(1, 28986781808), (2, 14493390904), (4, 7246695452), (8, 3623347726), (16, 1811673863), (1663, 17430416), (3326, 8715208), (6652, 4357604), (13304, 2178802), (26608, 1089401)]