1280886256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{6158107}}^1$

素因数の和:6158128

約数の個数: 20

約数和(自身を含む): 2672618872

約数和(自身を除く): 1391732616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 6158107, 12316214, 24632428, 49264856, 80055391, 98529712, 160110782, 320221564, 640443128, 1280886256]

約数ペア:

[(1, 1280886256), (2, 640443128), (4, 320221564), (8, 160110782), (13, 98529712), (16, 80055391), (26, 49264856), (52, 24632428), (104, 12316214), (208, 6158107)]