640628640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:292

約数の個数: 288

約数和(自身を含む): 2294562816

約数和(自身を除く): 1653934176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 113, 120, 124, 127, 144, 155, 160, 180, 186, 226, 240, 248, 254, 279, 288, 310, 339, 360, 372, 381, 452, 465, 480, 496, 508, 558, 565, 620, 635, 678, 720, 744, 762, 904, 930, 992, 1016, 1017, 1116, 1130, 1143, 1240, 1270, 1356, 1395, 1440, 1488, 1524, 1695, 1808, 1860, 1905, 2032, 2034, 2232, 2260, 2286, 2480, 2540, 2712, 2790, 2976, 3048, 3390, 3503, 3616, 3720, 3810, 3937, 4064, 4068, 4464, 4520, 4572, 4960, 5080, 5085, 5424, 5580, 5715, 6096, 6780, 7006, 7440, 7620, 7874, 8136, 8928, 9040, 9144, 10160, 10170, 10509, 10848, 11160, 11430, 11811, 12192, 13560, 14012, 14351, 14880, 15240, 15748, 16272, 17515, 18080, 18288, 19685, 20320, 20340, 21018, 22320, 22860, 23622, 27120, 28024, 28702, 30480, 31496, 31527, 32544, 35030, 35433, 36576, 39370, 40680, 42036, 43053, 44640, 45720, 47244, 52545, 54240, 56048, 57404, 59055, 60960, 62992, 63054, 70060, 70866, 71755, 78740, 81360, 84072, 86106, 91440, 94488, 105090, 112096, 114808, 118110, 125984, 126108, 129159, 140120, 141732, 143510, 157480, 157635, 162720, 168144, 172212, 177165, 182880, 188976, 210180, 215265, 229616, 236220, 252216, 258318, 280240, 283464, 287020, 314960, 315270, 336288, 344424, 354330, 377952, 420360, 430530, 444881, 459232, 472440, 504432, 516636, 560480, 566928, 574040, 629920, 630540, 645795, 688848, 708660, 840720, 861060, 889762, 944880, 1008864, 1033272, 1133856, 1148080, 1261080, 1291590, 1334643, 1377696, 1417320, 1681440, 1722120, 1779524, 1889760, 2066544, 2224405, 2296160, 2522160, 2583180, 2669286, 2834640, 3444240, 3559048, 4003929, 4133088, 4448810, 5044320, 5166360, 5338572, 5669280, 6673215, 6888480, 7118096, 8007858, 8897620, 10332720, 10677144, 13346430, 14236192, 16015716, 17795240, 20019645, 20665440, 21354288, 26692860, 32031432, 35590480, 40039290, 42708576, 53385720, 64062864, 71180960, 80078580, 106771440, 128125728, 160157160, 213542880, 320314320, 640628640]

約数ペア:

[(1, 640628640), (2, 320314320), (3, 213542880), (4, 160157160), (5, 128125728), (6, 106771440), (8, 80078580), (9, 71180960), (10, 64062864), (12, 53385720), (15, 42708576), (16, 40039290), (18, 35590480), (20, 32031432), (24, 26692860), (30, 21354288), (31, 20665440), (32, 20019645), (36, 17795240), (40, 16015716), (45, 14236192), (48, 13346430), (60, 10677144), (62, 10332720), (72, 8897620), (80, 8007858), (90, 7118096), (93, 6888480), (96, 6673215), (113, 5669280), (120, 5338572), (124, 5166360), (127, 5044320), (144, 4448810), (155, 4133088), (160, 4003929), (180, 3559048), (186, 3444240), (226, 2834640), (240, 2669286), (248, 2583180), (254, 2522160), (279, 2296160), (288, 2224405), (310, 2066544), (339, 1889760), (360, 1779524), (372, 1722120), (381, 1681440), (452, 1417320), (465, 1377696), (480, 1334643), (496, 1291590), (508, 1261080), (558, 1148080), (565, 1133856), (620, 1033272), (635, 1008864), (678, 944880), (720, 889762), (744, 861060), (762, 840720), (904, 708660), (930, 688848), (992, 645795), (1016, 630540), (1017, 629920), (1116, 574040), (1130, 566928), (1143, 560480), (1240, 516636), (1270, 504432), (1356, 472440), (1395, 459232), (1440, 444881), (1488, 430530), (1524, 420360), (1695, 377952), (1808, 354330), (1860, 344424), (1905, 336288), (2032, 315270), (2034, 314960), (2232, 287020), (2260, 283464), (2286, 280240), (2480, 258318), (2540, 252216), (2712, 236220), (2790, 229616), (2976, 215265), (3048, 210180), (3390, 188976), (3503, 182880), (3616, 177165), (3720, 172212), (3810, 168144), (3937, 162720), (4064, 157635), (4068, 157480), (4464, 143510), (4520, 141732), (4572, 140120), (4960, 129159), (5080, 126108), (5085, 125984), (5424, 118110), (5580, 114808), (5715, 112096), (6096, 105090), (6780, 94488), (7006, 91440), (7440, 86106), (7620, 84072), (7874, 81360), (8136, 78740), (8928, 71755), (9040, 70866), (9144, 70060), (10160, 63054), (10170, 62992), (10509, 60960), (10848, 59055), (11160, 57404), (11430, 56048), (11811, 54240), (12192, 52545), (13560, 47244), (14012, 45720), (14351, 44640), (14880, 43053), (15240, 42036), (15748, 40680), (16272, 39370), (17515, 36576), (18080, 35433), (18288, 35030), (19685, 32544), (20320, 31527), (20340, 31496), (21018, 30480), (22320, 28702), (22860, 28024), (23622, 27120)]