280290428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{42187}}^1$

素因数の和:42353

約数の個数: 24

約数和(自身を含む): 538656384

約数和(自身を除く): 258365956

約数列:

[1, 2, 4, 11, 22, 44, 151, 302, 604, 1661, 3322, 6644, 42187, 84374, 168748, 464057, 928114, 1856228, 6370237, 12740474, 25480948, 70072607, 140145214, 280290428]

約数ペア:

[(1, 280290428), (2, 140145214), (4, 70072607), (11, 25480948), (22, 12740474), (44, 6370237), (151, 1856228), (302, 928114), (604, 464057), (1661, 168748), (3322, 84374), (6644, 42187)]