268456816

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{120709}}^1$

素因数の和:120856

約数の個数: 20

約数和(自身を含む): 523881400

約数和(自身を除く): 255424584

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 120709, 241418, 482836, 965672, 1931344, 16778551, 33557102, 67114204, 134228408, 268456816]

約数ペア:

[(1, 268456816), (2, 134228408), (4, 67114204), (8, 33557102), (16, 16778551), (139, 1931344), (278, 965672), (556, 482836), (1112, 241418), (2224, 120709)]