2558295

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:559

約数の個数: 24

約数和(自身を含む): 4477200

約数和(自身を除く): 1918905

約数列:

[1, 3, 5, 9, 15, 45, 139, 409, 417, 695, 1227, 1251, 2045, 2085, 3681, 6135, 6255, 18405, 56851, 170553, 284255, 511659, 852765, 2558295]

約数ペア:

[(1, 2558295), (3, 852765), (5, 511659), (9, 284255), (15, 170553), (45, 56851), (139, 18405), (409, 6255), (417, 6135), (695, 3681), (1227, 2085), (1251, 2045)]