720686511

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 1173312000

約数和(自身を除く): 452625489

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 193, 251, 261, 513, 551, 579, 753, 783, 1653, 1737, 2259, 3667, 4769, 4959, 5211, 5597, 6777, 7279, 11001, 14307, 14877, 16791, 21837, 33003, 42921, 48443, 50373, 65511, 99009, 106343, 128763, 138301, 145329, 151119, 196533, 319029, 414903, 435987, 920417, 957087, 1244709, 1307961, 1404847, 2761251, 2871261, 3734127, 4214541, 8283753, 12643623, 24851259, 26692093, 37930869, 80076279, 240228837, 720686511]

約数ペア:

[(1, 720686511), (3, 240228837), (9, 80076279), (19, 37930869), (27, 26692093), (29, 24851259), (57, 12643623), (87, 8283753), (171, 4214541), (193, 3734127), (251, 2871261), (261, 2761251), (513, 1404847), (551, 1307961), (579, 1244709), (753, 957087), (783, 920417), (1653, 435987), (1737, 414903), (2259, 319029), (3667, 196533), (4769, 151119), (4959, 145329), (5211, 138301), (5597, 128763), (6777, 106343), (7279, 99009), (11001, 65511), (14307, 50373), (14877, 48443), (16791, 42921), (21837, 33003)]