20377288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{557}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 40678200

約数和(自身を除く): 20300912

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 269, 538, 557, 1076, 1114, 2152, 2228, 4456, 4573, 9146, 9469, 18292, 18938, 36584, 37876, 75752, 149833, 299666, 599332, 1198664, 2547161, 5094322, 10188644, 20377288]

約数ペア:

[(1, 20377288), (2, 10188644), (4, 5094322), (8, 2547161), (17, 1198664), (34, 599332), (68, 299666), (136, 149833), (269, 75752), (538, 37876), (557, 36584), (1076, 18938), (1114, 18292), (2152, 9469), (2228, 9146), (4456, 4573)]