128521796

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{190121}}^1$

素因数の和:190151

約数の個数: 18

約数和(自身を含む): 243546282

約数和(自身を除く): 115024486

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 190121, 380242, 760484, 2471573, 4943146, 9886292, 32130449, 64260898, 128521796]

約数ペア:

[(1, 128521796), (2, 64260898), (4, 32130449), (13, 9886292), (26, 4943146), (52, 2471573), (169, 760484), (338, 380242), (676, 190121)]