20931472128

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{103}}^2\times {\mathrm{367}}^1$

素因数の和:599

約数の個数: 216

約数和(自身を含む): 64465863168

約数和(自身を除く): 43534391040

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 103, 112, 128, 168, 192, 206, 224, 256, 309, 336, 367, 384, 412, 448, 618, 672, 721, 734, 768, 824, 896, 1101, 1236, 1344, 1442, 1468, 1648, 1792, 2163, 2202, 2472, 2569, 2688, 2884, 2936, 3296, 4326, 4404, 4944, 5138, 5376, 5768, 5872, 6592, 7707, 8652, 8808, 9888, 10276, 10609, 11536, 11744, 13184, 15414, 17304, 17616, 19776, 20552, 21218, 23072, 23488, 26368, 30828, 31827, 34608, 35232, 37801, 39552, 41104, 42436, 46144, 46976, 61656, 63654, 69216, 70464, 74263, 75602, 79104, 82208, 84872, 92288, 93952, 113403, 123312, 127308, 138432, 140928, 148526, 151204, 164416, 169744, 184576, 222789, 226806, 246624, 254616, 264607, 276864, 281856, 297052, 302408, 328832, 339488, 445578, 453612, 493248, 509232, 529214, 553728, 594104, 604816, 657664, 678976, 793821, 891156, 907224, 986496, 1018464, 1058428, 1188208, 1209632, 1357952, 1587642, 1782312, 1814448, 1972992, 2036928, 2116856, 2376416, 2419264, 2715904, 3175284, 3564624, 3628896, 3893503, 4073856, 4233712, 4752832, 4838528, 6350568, 7129248, 7257792, 7787006, 8147712, 8467424, 9505664, 9677056, 11680509, 12701136, 14258496, 14515584, 15574012, 16934848, 19011328, 23361018, 25402272, 27254521, 28516992, 29031168, 31148024, 33869696, 46722036, 50804544, 54509042, 57033984, 62296048, 67739392, 81763563, 93444072, 101609088, 109018084, 124592096, 163527126, 186888144, 203218176, 218036168, 249184192, 327054252, 373776288, 436072336, 498368384, 654108504, 747552576, 872144672, 996736768, 1308217008, 1495105152, 1744289344, 2616434016, 2990210304, 3488578688, 5232868032, 6977157376, 10465736064, 20931472128]

約数ペア:

[(1, 20931472128), (2, 10465736064), (3, 6977157376), (4, 5232868032), (6, 3488578688), (7, 2990210304), (8, 2616434016), (12, 1744289344), (14, 1495105152), (16, 1308217008), (21, 996736768), (24, 872144672), (28, 747552576), (32, 654108504), (42, 498368384), (48, 436072336), (56, 373776288), (64, 327054252), (84, 249184192), (96, 218036168), (103, 203218176), (112, 186888144), (128, 163527126), (168, 124592096), (192, 109018084), (206, 101609088), (224, 93444072), (256, 81763563), (309, 67739392), (336, 62296048), (367, 57033984), (384, 54509042), (412, 50804544), (448, 46722036), (618, 33869696), (672, 31148024), (721, 29031168), (734, 28516992), (768, 27254521), (824, 25402272), (896, 23361018), (1101, 19011328), (1236, 16934848), (1344, 15574012), (1442, 14515584), (1468, 14258496), (1648, 12701136), (1792, 11680509), (2163, 9677056), (2202, 9505664), (2472, 8467424), (2569, 8147712), (2688, 7787006), (2884, 7257792), (2936, 7129248), (3296, 6350568), (4326, 4838528), (4404, 4752832), (4944, 4233712), (5138, 4073856), (5376, 3893503), (5768, 3628896), (5872, 3564624), (6592, 3175284), (7707, 2715904), (8652, 2419264), (8808, 2376416), (9888, 2116856), (10276, 2036928), (10609, 1972992), (11536, 1814448), (11744, 1782312), (13184, 1587642), (15414, 1357952), (17304, 1209632), (17616, 1188208), (19776, 1058428), (20552, 1018464), (21218, 986496), (23072, 907224), (23488, 891156), (26368, 793821), (30828, 678976), (31827, 657664), (34608, 604816), (35232, 594104), (37801, 553728), (39552, 529214), (41104, 509232), (42436, 493248), (46144, 453612), (46976, 445578), (61656, 339488), (63654, 328832), (69216, 302408), (70464, 297052), (74263, 281856), (75602, 276864), (79104, 264607), (82208, 254616), (84872, 246624), (92288, 226806), (93952, 222789), (113403, 184576), (123312, 169744), (127308, 164416), (138432, 151204), (140928, 148526)]