28249328

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{43063}}^1$

素因数の和:43112

約数の個数: 20

約数和(自身を含む): 56069328

約数和(自身を除く): 27820000

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 43063, 86126, 172252, 344504, 689008, 1765583, 3531166, 7062332, 14124664, 28249328]

約数ペア:

[(1, 28249328), (2, 14124664), (4, 7062332), (8, 3531166), (16, 1765583), (41, 689008), (82, 344504), (164, 172252), (328, 86126), (656, 43063)]