28517710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4139}}^1$

素因数の和:4212

約数の個数: 32

約数和(自身を含む): 56337120

約数和(自身を除く): 27819410

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 4139, 6890, 8278, 20695, 41390, 53807, 107614, 219367, 269035, 438734, 538070, 1096835, 2193670, 2851771, 5703542, 14258855, 28517710]

約数ペア:

[(1, 28517710), (2, 14258855), (5, 5703542), (10, 2851771), (13, 2193670), (26, 1096835), (53, 538070), (65, 438734), (106, 269035), (130, 219367), (265, 107614), (530, 53807), (689, 41390), (1378, 20695), (3445, 8278), (4139, 6890)]