665730009

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:832

約数の個数: 80

約数和(自身を含む): 1204346880

約数和(自身を除く): 538616871

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 71, 81, 161, 189, 207, 213, 483, 497, 567, 621, 639, 719, 1449, 1491, 1633, 1863, 1917, 2157, 4347, 4473, 4899, 5033, 5751, 6471, 11431, 13041, 13419, 14697, 15099, 16537, 19413, 34293, 40257, 44091, 45297, 49611, 51049, 58239, 102879, 115759, 132273, 135891, 148833, 153147, 308637, 347277, 357343, 407673, 446499, 459441, 925911, 1041831, 1072029, 1174127, 1339497, 1378323, 3125493, 3216087, 3522381, 4134969, 8218889, 9376479, 9648261, 10567143, 24656667, 28944783, 31701429, 73970001, 95104287, 221910003, 665730009]

約数ペア:

[(1, 665730009), (3, 221910003), (7, 95104287), (9, 73970001), (21, 31701429), (23, 28944783), (27, 24656667), (63, 10567143), (69, 9648261), (71, 9376479), (81, 8218889), (161, 4134969), (189, 3522381), (207, 3216087), (213, 3125493), (483, 1378323), (497, 1339497), (567, 1174127), (621, 1072029), (639, 1041831), (719, 925911), (1449, 459441), (1491, 446499), (1633, 407673), (1863, 357343), (1917, 347277), (2157, 308637), (4347, 153147), (4473, 148833), (4899, 135891), (5033, 132273), (5751, 115759), (6471, 102879), (11431, 58239), (13041, 51049), (13419, 49611), (14697, 45297), (15099, 44091), (16537, 40257), (19413, 34293)]