258941488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1244911}}^1$

素因数の和:1244932

約数の個数: 20

約数和(自身を含む): 540291808

約数和(自身を除く): 281350320

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1244911, 2489822, 4979644, 9959288, 16183843, 19918576, 32367686, 64735372, 129470744, 258941488]

約数ペア:

[(1, 258941488), (2, 129470744), (4, 64735372), (8, 32367686), (13, 19918576), (16, 16183843), (26, 9959288), (52, 4979644), (104, 2489822), (208, 1244911)]