289443856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1391557}}^1$

素因数の和:1391578

約数の個数: 20

約数和(自身を含む): 603936172

約数和(自身を除く): 314492316

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1391557, 2783114, 5566228, 11132456, 18090241, 22264912, 36180482, 72360964, 144721928, 289443856]

約数ペア:

[(1, 289443856), (2, 144721928), (4, 72360964), (8, 36180482), (13, 22264912), (16, 18090241), (26, 11132456), (52, 5566228), (104, 2783114), (208, 1391557)]