638821920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 288

約数和(自身を含む): 2345583744

約数和(自身を除く): 1706761824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 96, 102, 110, 120, 121, 132, 136, 160, 165, 170, 176, 187, 204, 220, 240, 242, 255, 264, 272, 330, 340, 352, 363, 374, 408, 440, 480, 484, 510, 528, 544, 561, 605, 647, 660, 680, 726, 748, 816, 880, 935, 968, 1020, 1056, 1122, 1210, 1294, 1320, 1360, 1452, 1496, 1632, 1760, 1815, 1870, 1936, 1941, 2040, 2057, 2244, 2420, 2588, 2640, 2720, 2805, 2904, 2992, 3235, 3630, 3740, 3872, 3882, 4080, 4114, 4488, 4840, 5176, 5280, 5610, 5808, 5984, 6171, 6470, 7117, 7260, 7480, 7764, 8160, 8228, 8976, 9680, 9705, 10285, 10352, 10999, 11220, 11616, 12342, 12940, 14234, 14520, 14960, 15528, 16456, 17952, 19360, 19410, 20570, 20704, 21351, 21998, 22440, 24684, 25880, 28468, 29040, 29920, 30855, 31056, 32912, 32997, 35585, 38820, 41140, 42702, 43996, 44880, 49368, 51760, 54995, 56936, 58080, 61710, 62112, 65824, 65994, 71170, 77640, 78287, 82280, 85404, 87992, 89760, 98736, 103520, 106755, 109990, 113872, 120989, 123420, 131988, 142340, 155280, 156574, 164560, 164985, 170808, 175984, 197472, 213510, 219980, 227744, 234861, 241978, 246840, 263976, 284680, 310560, 313148, 329120, 329970, 341616, 351968, 362967, 391435, 427020, 439960, 469722, 483956, 493680, 527952, 569360, 604945, 626296, 659940, 683232, 725934, 782870, 854040, 879920, 939444, 967912, 987360, 1055904, 1138720, 1174305, 1209890, 1252592, 1319880, 1330879, 1451868, 1565740, 1708080, 1759840, 1814835, 1878888, 1935824, 2348610, 2419780, 2505184, 2639760, 2661758, 2903736, 3131480, 3416160, 3629670, 3757776, 3871648, 3992637, 4697220, 4839560, 5279520, 5323516, 5807472, 6262960, 6654395, 7259340, 7515552, 7985274, 9394440, 9679120, 10647032, 11614944, 12525920, 13308790, 14518680, 15970548, 18788880, 19358240, 19963185, 21294064, 26617580, 29037360, 31941096, 37577760, 39926370, 42588128, 53235160, 58074720, 63882192, 79852740, 106470320, 127764384, 159705480, 212940640, 319410960, 638821920]

約数ペア:

[(1, 638821920), (2, 319410960), (3, 212940640), (4, 159705480), (5, 127764384), (6, 106470320), (8, 79852740), (10, 63882192), (11, 58074720), (12, 53235160), (15, 42588128), (16, 39926370), (17, 37577760), (20, 31941096), (22, 29037360), (24, 26617580), (30, 21294064), (32, 19963185), (33, 19358240), (34, 18788880), (40, 15970548), (44, 14518680), (48, 13308790), (51, 12525920), (55, 11614944), (60, 10647032), (66, 9679120), (68, 9394440), (80, 7985274), (85, 7515552), (88, 7259340), (96, 6654395), (102, 6262960), (110, 5807472), (120, 5323516), (121, 5279520), (132, 4839560), (136, 4697220), (160, 3992637), (165, 3871648), (170, 3757776), (176, 3629670), (187, 3416160), (204, 3131480), (220, 2903736), (240, 2661758), (242, 2639760), (255, 2505184), (264, 2419780), (272, 2348610), (330, 1935824), (340, 1878888), (352, 1814835), (363, 1759840), (374, 1708080), (408, 1565740), (440, 1451868), (480, 1330879), (484, 1319880), (510, 1252592), (528, 1209890), (544, 1174305), (561, 1138720), (605, 1055904), (647, 987360), (660, 967912), (680, 939444), (726, 879920), (748, 854040), (816, 782870), (880, 725934), (935, 683232), (968, 659940), (1020, 626296), (1056, 604945), (1122, 569360), (1210, 527952), (1294, 493680), (1320, 483956), (1360, 469722), (1452, 439960), (1496, 427020), (1632, 391435), (1760, 362967), (1815, 351968), (1870, 341616), (1936, 329970), (1941, 329120), (2040, 313148), (2057, 310560), (2244, 284680), (2420, 263976), (2588, 246840), (2640, 241978), (2720, 234861), (2805, 227744), (2904, 219980), (2992, 213510), (3235, 197472), (3630, 175984), (3740, 170808), (3872, 164985), (3882, 164560), (4080, 156574), (4114, 155280), (4488, 142340), (4840, 131988), (5176, 123420), (5280, 120989), (5610, 113872), (5808, 109990), (5984, 106755), (6171, 103520), (6470, 98736), (7117, 89760), (7260, 87992), (7480, 85404), (7764, 82280), (8160, 78287), (8228, 77640), (8976, 71170), (9680, 65994), (9705, 65824), (10285, 62112), (10352, 61710), (10999, 58080), (11220, 56936), (11616, 54995), (12342, 51760), (12940, 49368), (14234, 44880), (14520, 43996), (14960, 42702), (15528, 41140), (16456, 38820), (17952, 35585), (19360, 32997), (19410, 32912), (20570, 31056), (20704, 30855), (21351, 29920), (21998, 29040), (22440, 28468), (24684, 25880)]