289885726

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{997}}^1$

素因数の和:1276

約数の個数: 32

約数和(自身を含む): 479854368

約数和(自身を除く): 189968642

約数列:

[1, 2, 13, 26, 53, 106, 211, 422, 689, 997, 1378, 1994, 2743, 5486, 11183, 12961, 22366, 25922, 52841, 105682, 145379, 210367, 290758, 420734, 686933, 1373866, 2734771, 5469542, 11149451, 22298902, 144942863, 289885726]

約数ペア:

[(1, 289885726), (2, 144942863), (13, 22298902), (26, 11149451), (53, 5469542), (106, 2734771), (211, 1373866), (422, 686933), (689, 420734), (997, 290758), (1378, 210367), (1994, 145379), (2743, 105682), (5486, 52841), (11183, 25922), (12961, 22366)]