640662120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 384

約数和(自身を含む): 2515968000

約数和(自身を除く): 1875305880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 59, 60, 62, 63, 70, 72, 84, 90, 93, 105, 118, 120, 124, 126, 139, 140, 155, 168, 177, 180, 186, 210, 217, 236, 248, 252, 278, 279, 280, 295, 310, 315, 354, 360, 372, 413, 417, 420, 434, 465, 472, 504, 531, 556, 558, 590, 620, 630, 651, 695, 708, 744, 826, 834, 840, 868, 885, 930, 973, 1062, 1085, 1112, 1116, 1180, 1239, 1240, 1251, 1260, 1302, 1390, 1395, 1416, 1652, 1668, 1736, 1770, 1829, 1860, 1946, 1953, 2065, 2085, 2124, 2170, 2232, 2360, 2478, 2502, 2520, 2604, 2655, 2780, 2790, 2919, 3255, 3304, 3336, 3540, 3658, 3717, 3720, 3892, 3906, 4130, 4170, 4248, 4309, 4340, 4865, 4956, 5004, 5208, 5310, 5487, 5560, 5580, 5838, 6195, 6255, 6510, 7080, 7316, 7434, 7784, 7812, 8201, 8260, 8340, 8618, 8680, 8757, 9145, 9730, 9765, 9912, 10008, 10620, 10974, 11160, 11676, 12390, 12510, 12803, 12927, 13020, 14595, 14632, 14868, 15624, 16402, 16461, 16520, 16680, 17236, 17514, 18290, 18585, 19460, 19530, 21240, 21545, 21948, 23352, 24603, 24780, 25020, 25606, 25854, 26040, 27435, 29190, 29736, 30163, 32804, 32922, 34472, 35028, 36580, 37170, 38409, 38781, 38920, 39060, 41005, 43090, 43785, 43896, 49206, 49560, 50040, 51212, 51708, 54870, 57407, 58380, 60326, 64015, 64635, 65608, 65844, 70056, 73160, 73809, 74340, 76818, 77562, 78120, 82010, 82305, 86180, 87570, 90489, 98412, 102424, 103416, 109740, 114814, 115227, 116760, 120652, 123015, 128030, 129270, 131688, 147618, 148680, 150815, 153636, 155124, 164020, 164610, 172221, 172360, 175140, 180978, 192045, 193905, 196824, 219480, 229628, 230454, 241304, 246030, 254231, 256060, 258540, 271467, 287035, 295236, 301630, 307272, 310248, 328040, 329220, 344442, 350280, 361956, 369045, 384090, 387810, 452445, 459256, 460908, 492060, 508462, 512120, 516663, 517080, 542934, 574070, 576135, 590472, 603260, 658440, 688884, 723912, 738090, 762693, 768180, 775620, 861105, 904890, 921816, 984120, 1016924, 1033326, 1085868, 1148140, 1152270, 1206520, 1271155, 1357335, 1377768, 1476180, 1525386, 1536360, 1551240, 1722210, 1779617, 1809780, 2033848, 2066652, 2171736, 2288079, 2296280, 2304540, 2542310, 2583315, 2714670, 2952360, 3050772, 3444420, 3559234, 3619560, 3813465, 4133304, 4576158, 4609080, 5084620, 5166630, 5338851, 5429340, 6101544, 6888840, 7118468, 7626930, 8898085, 9152316, 10169240, 10333260, 10677702, 10858680, 11440395, 14236936, 15253860, 16016553, 17796170, 18304632, 20666520, 21355404, 22880790, 26694255, 30507720, 32033106, 35592340, 42710808, 45761580, 53388510, 64066212, 71184680, 80082765, 91523160, 106777020, 128132424, 160165530, 213554040, 320331060, 640662120]

約数ペア:

[(1, 640662120), (2, 320331060), (3, 213554040), (4, 160165530), (5, 128132424), (6, 106777020), (7, 91523160), (8, 80082765), (9, 71184680), (10, 64066212), (12, 53388510), (14, 45761580), (15, 42710808), (18, 35592340), (20, 32033106), (21, 30507720), (24, 26694255), (28, 22880790), (30, 21355404), (31, 20666520), (35, 18304632), (36, 17796170), (40, 16016553), (42, 15253860), (45, 14236936), (56, 11440395), (59, 10858680), (60, 10677702), (62, 10333260), (63, 10169240), (70, 9152316), (72, 8898085), (84, 7626930), (90, 7118468), (93, 6888840), (105, 6101544), (118, 5429340), (120, 5338851), (124, 5166630), (126, 5084620), (139, 4609080), (140, 4576158), (155, 4133304), (168, 3813465), (177, 3619560), (180, 3559234), (186, 3444420), (210, 3050772), (217, 2952360), (236, 2714670), (248, 2583315), (252, 2542310), (278, 2304540), (279, 2296280), (280, 2288079), (295, 2171736), (310, 2066652), (315, 2033848), (354, 1809780), (360, 1779617), (372, 1722210), (413, 1551240), (417, 1536360), (420, 1525386), (434, 1476180), (465, 1377768), (472, 1357335), (504, 1271155), (531, 1206520), (556, 1152270), (558, 1148140), (590, 1085868), (620, 1033326), (630, 1016924), (651, 984120), (695, 921816), (708, 904890), (744, 861105), (826, 775620), (834, 768180), (840, 762693), (868, 738090), (885, 723912), (930, 688884), (973, 658440), (1062, 603260), (1085, 590472), (1112, 576135), (1116, 574070), (1180, 542934), (1239, 517080), (1240, 516663), (1251, 512120), (1260, 508462), (1302, 492060), (1390, 460908), (1395, 459256), (1416, 452445), (1652, 387810), (1668, 384090), (1736, 369045), (1770, 361956), (1829, 350280), (1860, 344442), (1946, 329220), (1953, 328040), (2065, 310248), (2085, 307272), (2124, 301630), (2170, 295236), (2232, 287035), (2360, 271467), (2478, 258540), (2502, 256060), (2520, 254231), (2604, 246030), (2655, 241304), (2780, 230454), (2790, 229628), (2919, 219480), (3255, 196824), (3304, 193905), (3336, 192045), (3540, 180978), (3658, 175140), (3717, 172360), (3720, 172221), (3892, 164610), (3906, 164020), (4130, 155124), (4170, 153636), (4248, 150815), (4309, 148680), (4340, 147618), (4865, 131688), (4956, 129270), (5004, 128030), (5208, 123015), (5310, 120652), (5487, 116760), (5560, 115227), (5580, 114814), (5838, 109740), (6195, 103416), (6255, 102424), (6510, 98412), (7080, 90489), (7316, 87570), (7434, 86180), (7784, 82305), (7812, 82010), (8201, 78120), (8260, 77562), (8340, 76818), (8618, 74340), (8680, 73809), (8757, 73160), (9145, 70056), (9730, 65844), (9765, 65608), (9912, 64635), (10008, 64015), (10620, 60326), (10974, 58380), (11160, 57407), (11676, 54870), (12390, 51708), (12510, 51212), (12803, 50040), (12927, 49560), (13020, 49206), (14595, 43896), (14632, 43785), (14868, 43090), (15624, 41005), (16402, 39060), (16461, 38920), (16520, 38781), (16680, 38409), (17236, 37170), (17514, 36580), (18290, 35028), (18585, 34472), (19460, 32922), (19530, 32804), (21240, 30163), (21545, 29736), (21948, 29190), (23352, 27435), (24603, 26040), (24780, 25854), (25020, 25606)]