2780451279

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{21767}}^1$

素因数の和:21881

約数の個数: 40

約数和(自身を含む): 4424999040

約数和(自身を除く): 1644547761

約数列:

[1, 3, 9, 19, 27, 57, 81, 83, 171, 249, 513, 747, 1539, 1577, 2241, 4731, 6723, 14193, 21767, 42579, 65301, 127737, 195903, 413573, 587709, 1240719, 1763127, 1806661, 3722157, 5419983, 11166471, 16259949, 33499413, 34326559, 48779847, 102979677, 146339541, 308939031, 926817093, 2780451279]

約数ペア:

[(1, 2780451279), (3, 926817093), (9, 308939031), (19, 146339541), (27, 102979677), (57, 48779847), (81, 34326559), (83, 33499413), (171, 16259949), (249, 11166471), (513, 5419983), (747, 3722157), (1539, 1806661), (1577, 1763127), (2241, 1240719), (4731, 587709), (6723, 413573), (14193, 195903), (21767, 127737), (42579, 65301)]