81155760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:200

約数の個数: 240

約数和(自身を含む): 299909376

約数和(自身を除く): 218753616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 67, 70, 80, 84, 98, 103, 105, 112, 120, 134, 140, 147, 168, 196, 201, 206, 210, 240, 245, 268, 280, 294, 309, 335, 336, 392, 402, 412, 420, 469, 490, 515, 536, 560, 588, 618, 670, 721, 735, 784, 804, 824, 840, 938, 980, 1005, 1030, 1072, 1176, 1236, 1340, 1407, 1442, 1470, 1545, 1608, 1648, 1680, 1876, 1960, 2010, 2060, 2163, 2345, 2352, 2472, 2680, 2814, 2884, 2940, 3090, 3216, 3283, 3605, 3752, 3920, 4020, 4120, 4326, 4690, 4944, 5047, 5360, 5628, 5768, 5880, 6180, 6566, 6901, 7035, 7210, 7504, 8040, 8240, 8652, 9380, 9849, 10094, 10815, 11256, 11536, 11760, 12360, 13132, 13802, 14070, 14420, 15141, 16080, 16415, 17304, 18760, 19698, 20188, 20703, 21630, 22512, 24720, 25235, 26264, 27604, 28140, 28840, 30282, 32830, 34505, 34608, 37520, 39396, 40376, 41406, 43260, 48307, 49245, 50470, 52528, 55208, 56280, 57680, 60564, 65660, 69010, 75705, 78792, 80752, 82812, 86520, 96614, 98490, 100940, 103515, 110416, 112560, 121128, 131320, 138020, 144921, 151410, 157584, 165624, 173040, 193228, 196980, 201880, 207030, 241535, 242256, 262640, 276040, 289842, 302820, 331248, 338149, 386456, 393960, 403760, 414060, 483070, 552080, 579684, 605640, 676298, 724605, 772912, 787920, 828120, 966140, 1014447, 1159368, 1211280, 1352596, 1449210, 1656240, 1690745, 1932280, 2028894, 2318736, 2705192, 2898420, 3381490, 3864560, 4057788, 5072235, 5410384, 5796840, 6762980, 8115576, 10144470, 11593680, 13525960, 16231152, 20288940, 27051920, 40577880, 81155760]

約数ペア:

[(1, 81155760), (2, 40577880), (3, 27051920), (4, 20288940), (5, 16231152), (6, 13525960), (7, 11593680), (8, 10144470), (10, 8115576), (12, 6762980), (14, 5796840), (15, 5410384), (16, 5072235), (20, 4057788), (21, 3864560), (24, 3381490), (28, 2898420), (30, 2705192), (35, 2318736), (40, 2028894), (42, 1932280), (48, 1690745), (49, 1656240), (56, 1449210), (60, 1352596), (67, 1211280), (70, 1159368), (80, 1014447), (84, 966140), (98, 828120), (103, 787920), (105, 772912), (112, 724605), (120, 676298), (134, 605640), (140, 579684), (147, 552080), (168, 483070), (196, 414060), (201, 403760), (206, 393960), (210, 386456), (240, 338149), (245, 331248), (268, 302820), (280, 289842), (294, 276040), (309, 262640), (335, 242256), (336, 241535), (392, 207030), (402, 201880), (412, 196980), (420, 193228), (469, 173040), (490, 165624), (515, 157584), (536, 151410), (560, 144921), (588, 138020), (618, 131320), (670, 121128), (721, 112560), (735, 110416), (784, 103515), (804, 100940), (824, 98490), (840, 96614), (938, 86520), (980, 82812), (1005, 80752), (1030, 78792), (1072, 75705), (1176, 69010), (1236, 65660), (1340, 60564), (1407, 57680), (1442, 56280), (1470, 55208), (1545, 52528), (1608, 50470), (1648, 49245), (1680, 48307), (1876, 43260), (1960, 41406), (2010, 40376), (2060, 39396), (2163, 37520), (2345, 34608), (2352, 34505), (2472, 32830), (2680, 30282), (2814, 28840), (2884, 28140), (2940, 27604), (3090, 26264), (3216, 25235), (3283, 24720), (3605, 22512), (3752, 21630), (3920, 20703), (4020, 20188), (4120, 19698), (4326, 18760), (4690, 17304), (4944, 16415), (5047, 16080), (5360, 15141), (5628, 14420), (5768, 14070), (5880, 13802), (6180, 13132), (6566, 12360), (6901, 11760), (7035, 11536), (7210, 11256), (7504, 10815), (8040, 10094), (8240, 9849), (8652, 9380)]