258510928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1242841}}^1$

素因数の和:1242862

約数の個数: 20

約数和(自身を含む): 539393428

約数和(自身を除く): 280882500

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1242841, 2485682, 4971364, 9942728, 16156933, 19885456, 32313866, 64627732, 129255464, 258510928]

約数ペア:

[(1, 258510928), (2, 129255464), (4, 64627732), (8, 32313866), (13, 19885456), (16, 16156933), (26, 9942728), (52, 4971364), (104, 2485682), (208, 1242841)]