71805123

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 80

約数和(自身を含む): 126169120

約数和(自身を除く): 54363997

約数列:

[1, 3, 9, 13, 19, 27, 37, 39, 57, 81, 97, 111, 117, 171, 247, 291, 333, 351, 481, 513, 703, 741, 873, 999, 1053, 1261, 1443, 1539, 1843, 2109, 2223, 2619, 2997, 3589, 3783, 4329, 5529, 6327, 6669, 7857, 9139, 10767, 11349, 12987, 16587, 18981, 20007, 23959, 27417, 32301, 34047, 38961, 46657, 49761, 56943, 68191, 71877, 82251, 96903, 102141, 139971, 149283, 204573, 215631, 246753, 290709, 419913, 613719, 646893, 740259, 886483, 1259739, 1841157, 1940679, 2659449, 3779217, 5523471, 7978347, 23935041, 71805123]

約数ペア:

[(1, 71805123), (3, 23935041), (9, 7978347), (13, 5523471), (19, 3779217), (27, 2659449), (37, 1940679), (39, 1841157), (57, 1259739), (81, 886483), (97, 740259), (111, 646893), (117, 613719), (171, 419913), (247, 290709), (291, 246753), (333, 215631), (351, 204573), (481, 149283), (513, 139971), (703, 102141), (741, 96903), (873, 82251), (999, 71877), (1053, 68191), (1261, 56943), (1443, 49761), (1539, 46657), (1843, 38961), (2109, 34047), (2223, 32301), (2619, 27417), (2997, 23959), (3589, 20007), (3783, 18981), (4329, 16587), (5529, 12987), (6327, 11349), (6669, 10767), (7857, 9139)]