20655336

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 56044800

約数和(自身を除く): 35389464

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 239, 277, 312, 478, 554, 717, 831, 956, 1108, 1434, 1662, 1912, 2216, 2868, 3107, 3324, 3601, 5736, 6214, 6648, 7202, 9321, 10803, 12428, 14404, 18642, 21606, 24856, 28808, 37284, 43212, 66203, 74568, 86424, 132406, 198609, 264812, 397218, 529624, 794436, 860639, 1588872, 1721278, 2581917, 3442556, 5163834, 6885112, 10327668, 20655336]

約数ペア:

[(1, 20655336), (2, 10327668), (3, 6885112), (4, 5163834), (6, 3442556), (8, 2581917), (12, 1721278), (13, 1588872), (24, 860639), (26, 794436), (39, 529624), (52, 397218), (78, 264812), (104, 198609), (156, 132406), (239, 86424), (277, 74568), (312, 66203), (478, 43212), (554, 37284), (717, 28808), (831, 24856), (956, 21606), (1108, 18642), (1434, 14404), (1662, 12428), (1912, 10803), (2216, 9321), (2868, 7202), (3107, 6648), (3324, 6214), (3601, 5736)]