20667288320

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2011}}^1$

素因数の和:2107

約数の個数: 288

約数和(自身を含む): 60010008576

約数和(自身を除く): 39342720256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 64, 70, 74, 80, 112, 124, 128, 140, 148, 155, 160, 185, 217, 224, 248, 256, 259, 280, 296, 310, 320, 370, 434, 448, 496, 518, 560, 592, 620, 640, 740, 868, 896, 992, 1036, 1085, 1120, 1147, 1184, 1240, 1280, 1295, 1480, 1736, 1792, 1984, 2011, 2072, 2170, 2240, 2294, 2368, 2480, 2590, 2960, 3472, 3968, 4022, 4144, 4340, 4480, 4588, 4736, 4960, 5180, 5735, 5920, 6944, 7936, 8029, 8044, 8288, 8680, 8960, 9176, 9472, 9920, 10055, 10360, 11470, 11840, 13888, 14077, 16058, 16088, 16576, 17360, 18352, 19840, 20110, 20720, 22940, 23680, 27776, 28154, 32116, 32176, 33152, 34720, 36704, 39680, 40145, 40220, 41440, 45880, 47360, 55552, 56308, 62341, 64232, 64352, 66304, 69440, 70385, 73408, 74407, 80290, 80440, 82880, 91760, 112616, 124682, 128464, 128704, 138880, 140770, 146816, 148814, 160580, 160880, 165760, 183520, 225232, 249364, 256928, 257408, 277760, 281540, 293632, 297628, 311705, 321160, 321760, 331520, 367040, 372035, 436387, 450464, 498728, 513856, 514816, 520849, 563080, 595256, 623410, 642320, 643520, 734080, 744070, 872774, 900928, 997456, 1027712, 1041698, 1126160, 1190512, 1246820, 1284640, 1287040, 1468160, 1488140, 1745548, 1801856, 1994912, 2055424, 2083396, 2181935, 2252320, 2306617, 2381024, 2493640, 2569280, 2574080, 2604245, 2976280, 3491096, 3603712, 3989824, 4166792, 4363870, 4504640, 4613234, 4762048, 4987280, 5138560, 5208490, 5952560, 6982192, 7979648, 8333584, 8727740, 9009280, 9226468, 9524096, 9974560, 10277120, 10416980, 11533085, 11905120, 13964384, 15959296, 16146319, 16667168, 17455480, 18018560, 18452936, 19048192, 19949120, 20833960, 23066170, 23810240, 27928768, 32292638, 33334336, 34910960, 36905872, 39898240, 41667920, 46132340, 47620480, 55857536, 64585276, 66668672, 69821920, 73811744, 79796480, 80731595, 83335840, 92264680, 95240960, 111715072, 129170552, 133337344, 139643840, 147623488, 161463190, 166671680, 184529360, 258341104, 279287680, 295246976, 322926380, 333343360, 369058720, 516682208, 558575360, 590493952, 645852760, 666686720, 738117440, 1033364416, 1291705520, 1476234880, 2066728832, 2583411040, 2952469760, 4133457664, 5166822080, 10333644160, 20667288320]

約数ペア:

[(1, 20667288320), (2, 10333644160), (4, 5166822080), (5, 4133457664), (7, 2952469760), (8, 2583411040), (10, 2066728832), (14, 1476234880), (16, 1291705520), (20, 1033364416), (28, 738117440), (31, 666686720), (32, 645852760), (35, 590493952), (37, 558575360), (40, 516682208), (56, 369058720), (62, 333343360), (64, 322926380), (70, 295246976), (74, 279287680), (80, 258341104), (112, 184529360), (124, 166671680), (128, 161463190), (140, 147623488), (148, 139643840), (155, 133337344), (160, 129170552), (185, 111715072), (217, 95240960), (224, 92264680), (248, 83335840), (256, 80731595), (259, 79796480), (280, 73811744), (296, 69821920), (310, 66668672), (320, 64585276), (370, 55857536), (434, 47620480), (448, 46132340), (496, 41667920), (518, 39898240), (560, 36905872), (592, 34910960), (620, 33334336), (640, 32292638), (740, 27928768), (868, 23810240), (896, 23066170), (992, 20833960), (1036, 19949120), (1085, 19048192), (1120, 18452936), (1147, 18018560), (1184, 17455480), (1240, 16667168), (1280, 16146319), (1295, 15959296), (1480, 13964384), (1736, 11905120), (1792, 11533085), (1984, 10416980), (2011, 10277120), (2072, 9974560), (2170, 9524096), (2240, 9226468), (2294, 9009280), (2368, 8727740), (2480, 8333584), (2590, 7979648), (2960, 6982192), (3472, 5952560), (3968, 5208490), (4022, 5138560), (4144, 4987280), (4340, 4762048), (4480, 4613234), (4588, 4504640), (4736, 4363870), (4960, 4166792), (5180, 3989824), (5735, 3603712), (5920, 3491096), (6944, 2976280), (7936, 2604245), (8029, 2574080), (8044, 2569280), (8288, 2493640), (8680, 2381024), (8960, 2306617), (9176, 2252320), (9472, 2181935), (9920, 2083396), (10055, 2055424), (10360, 1994912), (11470, 1801856), (11840, 1745548), (13888, 1488140), (14077, 1468160), (16058, 1287040), (16088, 1284640), (16576, 1246820), (17360, 1190512), (18352, 1126160), (19840, 1041698), (20110, 1027712), (20720, 997456), (22940, 900928), (23680, 872774), (27776, 744070), (28154, 734080), (32116, 643520), (32176, 642320), (33152, 623410), (34720, 595256), (36704, 563080), (39680, 520849), (40145, 514816), (40220, 513856), (41440, 498728), (45880, 450464), (47360, 436387), (55552, 372035), (56308, 367040), (62341, 331520), (64232, 321760), (64352, 321160), (66304, 311705), (69440, 297628), (70385, 293632), (73408, 281540), (74407, 277760), (80290, 257408), (80440, 256928), (82880, 249364), (91760, 225232), (112616, 183520), (124682, 165760), (128464, 160880), (128704, 160580), (138880, 148814), (140770, 146816)]