81745664

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 216

約数和(自身を含む): 228355680

約数和(自身を除く): 146610016

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 29, 32, 44, 52, 56, 58, 64, 77, 88, 91, 104, 112, 116, 121, 128, 143, 154, 176, 182, 203, 208, 224, 232, 242, 256, 286, 308, 319, 352, 364, 377, 406, 416, 448, 464, 484, 572, 616, 638, 704, 728, 754, 812, 832, 847, 896, 928, 968, 1001, 1144, 1232, 1276, 1408, 1456, 1508, 1573, 1624, 1664, 1694, 1792, 1856, 1936, 2002, 2233, 2288, 2464, 2552, 2639, 2816, 2912, 3016, 3146, 3248, 3328, 3388, 3509, 3712, 3872, 4004, 4147, 4466, 4576, 4928, 5104, 5278, 5824, 6032, 6292, 6496, 6776, 7018, 7424, 7744, 8008, 8294, 8932, 9152, 9856, 10208, 10556, 11011, 11648, 12064, 12584, 12992, 13552, 14036, 15488, 16016, 16588, 17864, 18304, 19712, 20416, 21112, 22022, 23296, 24128, 24563, 25168, 25984, 27104, 28072, 29029, 30976, 32032, 33176, 35728, 36608, 40832, 42224, 44044, 45617, 48256, 49126, 50336, 51968, 54208, 56144, 58058, 64064, 66352, 71456, 81664, 84448, 88088, 91234, 96512, 98252, 100672, 108416, 112288, 116116, 128128, 132704, 142912, 168896, 176176, 182468, 196504, 201344, 216832, 224576, 232232, 256256, 265408, 285824, 319319, 337792, 352352, 364936, 393008, 402688, 449152, 464464, 530816, 571648, 638638, 675584, 704704, 729872, 786016, 898304, 928928, 1061632, 1277276, 1409408, 1459744, 1572032, 1857856, 2554552, 2818816, 2919488, 3144064, 3715712, 5109104, 5838976, 6288128, 7431424, 10218208, 11677952, 20436416, 40872832, 81745664]

約数ペア:

[(1, 81745664), (2, 40872832), (4, 20436416), (7, 11677952), (8, 10218208), (11, 7431424), (13, 6288128), (14, 5838976), (16, 5109104), (22, 3715712), (26, 3144064), (28, 2919488), (29, 2818816), (32, 2554552), (44, 1857856), (52, 1572032), (56, 1459744), (58, 1409408), (64, 1277276), (77, 1061632), (88, 928928), (91, 898304), (104, 786016), (112, 729872), (116, 704704), (121, 675584), (128, 638638), (143, 571648), (154, 530816), (176, 464464), (182, 449152), (203, 402688), (208, 393008), (224, 364936), (232, 352352), (242, 337792), (256, 319319), (286, 285824), (308, 265408), (319, 256256), (352, 232232), (364, 224576), (377, 216832), (406, 201344), (416, 196504), (448, 182468), (464, 176176), (484, 168896), (572, 142912), (616, 132704), (638, 128128), (704, 116116), (728, 112288), (754, 108416), (812, 100672), (832, 98252), (847, 96512), (896, 91234), (928, 88088), (968, 84448), (1001, 81664), (1144, 71456), (1232, 66352), (1276, 64064), (1408, 58058), (1456, 56144), (1508, 54208), (1573, 51968), (1624, 50336), (1664, 49126), (1694, 48256), (1792, 45617), (1856, 44044), (1936, 42224), (2002, 40832), (2233, 36608), (2288, 35728), (2464, 33176), (2552, 32032), (2639, 30976), (2816, 29029), (2912, 28072), (3016, 27104), (3146, 25984), (3248, 25168), (3328, 24563), (3388, 24128), (3509, 23296), (3712, 22022), (3872, 21112), (4004, 20416), (4147, 19712), (4466, 18304), (4576, 17864), (4928, 16588), (5104, 16016), (5278, 15488), (5824, 14036), (6032, 13552), (6292, 12992), (6496, 12584), (6776, 12064), (7018, 11648), (7424, 11011), (7744, 10556), (8008, 10208), (8294, 9856), (8932, 9152)]