28138864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{135283}}^1$

素因数の和:135304

約数の個数: 20

約数和(自身を含む): 58713256

約数和(自身を除く): 30574392

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 135283, 270566, 541132, 1082264, 1758679, 2164528, 3517358, 7034716, 14069432, 28138864]

約数ペア:

[(1, 28138864), (2, 14069432), (4, 7034716), (8, 3517358), (13, 2164528), (16, 1758679), (26, 1082264), (52, 541132), (104, 270566), (208, 135283)]