138857216

素因数分解:

$2^8\times {\mathrm{251}}^1\times {\mathrm{2161}}^1$

素因数の和:2428

約数の個数: 36

約数和(自身を含む): 278405064

約数和(自身を除く): 139547848

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 251, 256, 502, 1004, 2008, 2161, 4016, 4322, 8032, 8644, 16064, 17288, 32128, 34576, 64256, 69152, 138304, 276608, 542411, 553216, 1084822, 2169644, 4339288, 8678576, 17357152, 34714304, 69428608, 138857216]

約数ペア:

[(1, 138857216), (2, 69428608), (4, 34714304), (8, 17357152), (16, 8678576), (32, 4339288), (64, 2169644), (128, 1084822), (251, 553216), (256, 542411), (502, 276608), (1004, 138304), (2008, 69152), (2161, 64256), (4016, 34576), (4322, 32128), (8032, 17288), (8644, 16064)]