1278906460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4918871}}^1$

素因数の和:4918893

約数の個数: 24

約数和(自身を含む): 2892296736

約数和(自身を除く): 1613390276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4918871, 9837742, 19675484, 24594355, 49188710, 63945323, 98377420, 127890646, 255781292, 319726615, 639453230, 1278906460]

約数ペア:

[(1, 1278906460), (2, 639453230), (4, 319726615), (5, 255781292), (10, 127890646), (13, 98377420), (20, 63945323), (26, 49188710), (52, 24594355), (65, 19675484), (130, 9837742), (260, 4918871)]