1278045440

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 288

約数和(自身を含む): 3708633600

約数和(自身を除く): 2430588160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 64, 70, 71, 80, 82, 98, 112, 128, 140, 142, 160, 164, 196, 205, 224, 245, 256, 280, 284, 287, 320, 328, 343, 355, 392, 410, 448, 490, 497, 560, 568, 574, 640, 656, 686, 710, 784, 820, 896, 980, 994, 1120, 1136, 1148, 1280, 1312, 1372, 1420, 1435, 1568, 1640, 1715, 1792, 1960, 1988, 2009, 2240, 2272, 2296, 2485, 2624, 2744, 2840, 2870, 2911, 3136, 3280, 3430, 3479, 3920, 3976, 4018, 4480, 4544, 4592, 4970, 5248, 5488, 5680, 5740, 5822, 6272, 6560, 6860, 6958, 7840, 7952, 8036, 8960, 9088, 9184, 9940, 10045, 10496, 10976, 11360, 11480, 11644, 12544, 13120, 13720, 13916, 14063, 14555, 15680, 15904, 16072, 17395, 18176, 18368, 19880, 20090, 20377, 21952, 22720, 22960, 23288, 24353, 26240, 27440, 27832, 28126, 29110, 31360, 31808, 32144, 34790, 36736, 39760, 40180, 40754, 43904, 45440, 45920, 46576, 48706, 52480, 54880, 55664, 56252, 58220, 62720, 63616, 64288, 69580, 70315, 73472, 79520, 80360, 81508, 87808, 90880, 91840, 93152, 97412, 101885, 109760, 111328, 112504, 116440, 121765, 127232, 128576, 139160, 140630, 142639, 159040, 160720, 163016, 183680, 186304, 194824, 203770, 219520, 222656, 225008, 232880, 243530, 257152, 278320, 281260, 285278, 318080, 321440, 326032, 367360, 372608, 389648, 407540, 439040, 445312, 450016, 465760, 487060, 514304, 556640, 562520, 570556, 636160, 642880, 652064, 713195, 745216, 779296, 815080, 890624, 900032, 931520, 974120, 998473, 1113280, 1125040, 1141112, 1285760, 1304128, 1426390, 1558592, 1630160, 1800064, 1863040, 1948240, 1996946, 2226560, 2250080, 2282224, 2571520, 2608256, 2852780, 3117184, 3260320, 3600128, 3726080, 3896480, 3993892, 4453120, 4500160, 4564448, 4992365, 5216512, 5705560, 6234368, 6520640, 7792960, 7987784, 9000320, 9128896, 9984730, 11411120, 13041280, 15585920, 15975568, 18000640, 18257792, 19969460, 22822240, 26082560, 31171840, 31951136, 36515584, 39938920, 45644480, 63902272, 79877840, 91288960, 127804544, 159755680, 182577920, 255609088, 319511360, 639022720, 1278045440]

約数ペア:

[(1, 1278045440), (2, 639022720), (4, 319511360), (5, 255609088), (7, 182577920), (8, 159755680), (10, 127804544), (14, 91288960), (16, 79877840), (20, 63902272), (28, 45644480), (32, 39938920), (35, 36515584), (40, 31951136), (41, 31171840), (49, 26082560), (56, 22822240), (64, 19969460), (70, 18257792), (71, 18000640), (80, 15975568), (82, 15585920), (98, 13041280), (112, 11411120), (128, 9984730), (140, 9128896), (142, 9000320), (160, 7987784), (164, 7792960), (196, 6520640), (205, 6234368), (224, 5705560), (245, 5216512), (256, 4992365), (280, 4564448), (284, 4500160), (287, 4453120), (320, 3993892), (328, 3896480), (343, 3726080), (355, 3600128), (392, 3260320), (410, 3117184), (448, 2852780), (490, 2608256), (497, 2571520), (560, 2282224), (568, 2250080), (574, 2226560), (640, 1996946), (656, 1948240), (686, 1863040), (710, 1800064), (784, 1630160), (820, 1558592), (896, 1426390), (980, 1304128), (994, 1285760), (1120, 1141112), (1136, 1125040), (1148, 1113280), (1280, 998473), (1312, 974120), (1372, 931520), (1420, 900032), (1435, 890624), (1568, 815080), (1640, 779296), (1715, 745216), (1792, 713195), (1960, 652064), (1988, 642880), (2009, 636160), (2240, 570556), (2272, 562520), (2296, 556640), (2485, 514304), (2624, 487060), (2744, 465760), (2840, 450016), (2870, 445312), (2911, 439040), (3136, 407540), (3280, 389648), (3430, 372608), (3479, 367360), (3920, 326032), (3976, 321440), (4018, 318080), (4480, 285278), (4544, 281260), (4592, 278320), (4970, 257152), (5248, 243530), (5488, 232880), (5680, 225008), (5740, 222656), (5822, 219520), (6272, 203770), (6560, 194824), (6860, 186304), (6958, 183680), (7840, 163016), (7952, 160720), (8036, 159040), (8960, 142639), (9088, 140630), (9184, 139160), (9940, 128576), (10045, 127232), (10496, 121765), (10976, 116440), (11360, 112504), (11480, 111328), (11644, 109760), (12544, 101885), (13120, 97412), (13720, 93152), (13916, 91840), (14063, 90880), (14555, 87808), (15680, 81508), (15904, 80360), (16072, 79520), (17395, 73472), (18176, 70315), (18368, 69580), (19880, 64288), (20090, 63616), (20377, 62720), (21952, 58220), (22720, 56252), (22960, 55664), (23288, 54880), (24353, 52480), (26240, 48706), (27440, 46576), (27832, 45920), (28126, 45440), (29110, 43904), (31360, 40754), (31808, 40180), (32144, 39760), (34790, 36736)]