20377328

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31063}}^1$

素因数の和:31112

約数の個数: 20

約数和(自身を含む): 40445328

約数和(自身を除く): 20068000

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31063, 62126, 124252, 248504, 497008, 1273583, 2547166, 5094332, 10188664, 20377328]

約数ペア:

[(1, 20377328), (2, 10188664), (4, 5094332), (8, 2547166), (16, 1273583), (41, 497008), (82, 248504), (164, 124252), (328, 62126), (656, 31063)]