638113920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 256

約数和(自身を含む): 2143272960

約数和(自身を除く): 1505159040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 71, 80, 93, 96, 120, 124, 128, 142, 151, 155, 160, 186, 192, 213, 240, 248, 284, 302, 310, 320, 355, 372, 384, 426, 453, 465, 480, 496, 568, 604, 620, 640, 710, 744, 755, 852, 906, 930, 960, 992, 1065, 1136, 1208, 1240, 1420, 1488, 1510, 1704, 1812, 1860, 1920, 1984, 2130, 2201, 2265, 2272, 2416, 2480, 2840, 2976, 3020, 3408, 3624, 3720, 3968, 4260, 4402, 4530, 4544, 4681, 4832, 4960, 5680, 5952, 6040, 6603, 6816, 7248, 7440, 8520, 8804, 9060, 9088, 9362, 9664, 9920, 10721, 11005, 11360, 11904, 12080, 13206, 13632, 14043, 14496, 14880, 17040, 17608, 18120, 18724, 19328, 19840, 21442, 22010, 22720, 23405, 24160, 26412, 27264, 28086, 28992, 29760, 32163, 33015, 34080, 35216, 36240, 37448, 42884, 44020, 45440, 46810, 48320, 52824, 53605, 56172, 57984, 59520, 64326, 66030, 68160, 70215, 70432, 72480, 74896, 85768, 88040, 93620, 96640, 105648, 107210, 112344, 128652, 132060, 136320, 140430, 140864, 144960, 149792, 160815, 171536, 176080, 187240, 211296, 214420, 224688, 257304, 264120, 280860, 281728, 289920, 299584, 321630, 332351, 343072, 352160, 374480, 422592, 428840, 449376, 514608, 528240, 561720, 599168, 643260, 664702, 686144, 704320, 748960, 845184, 857680, 898752, 997053, 1029216, 1056480, 1123440, 1286520, 1329404, 1372288, 1408640, 1497920, 1661755, 1715360, 1797504, 1994106, 2058432, 2112960, 2246880, 2573040, 2658808, 2995840, 3323510, 3430720, 3988212, 4116864, 4225920, 4493760, 4985265, 5146080, 5317616, 6647020, 6861440, 7976424, 8987520, 9970530, 10292160, 10635232, 13294040, 15952848, 19941060, 20584320, 21270464, 26588080, 31905696, 39882120, 42540928, 53176160, 63811392, 79764240, 106352320, 127622784, 159528480, 212704640, 319056960, 638113920]

約数ペア:

[(1, 638113920), (2, 319056960), (3, 212704640), (4, 159528480), (5, 127622784), (6, 106352320), (8, 79764240), (10, 63811392), (12, 53176160), (15, 42540928), (16, 39882120), (20, 31905696), (24, 26588080), (30, 21270464), (31, 20584320), (32, 19941060), (40, 15952848), (48, 13294040), (60, 10635232), (62, 10292160), (64, 9970530), (71, 8987520), (80, 7976424), (93, 6861440), (96, 6647020), (120, 5317616), (124, 5146080), (128, 4985265), (142, 4493760), (151, 4225920), (155, 4116864), (160, 3988212), (186, 3430720), (192, 3323510), (213, 2995840), (240, 2658808), (248, 2573040), (284, 2246880), (302, 2112960), (310, 2058432), (320, 1994106), (355, 1797504), (372, 1715360), (384, 1661755), (426, 1497920), (453, 1408640), (465, 1372288), (480, 1329404), (496, 1286520), (568, 1123440), (604, 1056480), (620, 1029216), (640, 997053), (710, 898752), (744, 857680), (755, 845184), (852, 748960), (906, 704320), (930, 686144), (960, 664702), (992, 643260), (1065, 599168), (1136, 561720), (1208, 528240), (1240, 514608), (1420, 449376), (1488, 428840), (1510, 422592), (1704, 374480), (1812, 352160), (1860, 343072), (1920, 332351), (1984, 321630), (2130, 299584), (2201, 289920), (2265, 281728), (2272, 280860), (2416, 264120), (2480, 257304), (2840, 224688), (2976, 214420), (3020, 211296), (3408, 187240), (3624, 176080), (3720, 171536), (3968, 160815), (4260, 149792), (4402, 144960), (4530, 140864), (4544, 140430), (4681, 136320), (4832, 132060), (4960, 128652), (5680, 112344), (5952, 107210), (6040, 105648), (6603, 96640), (6816, 93620), (7248, 88040), (7440, 85768), (8520, 74896), (8804, 72480), (9060, 70432), (9088, 70215), (9362, 68160), (9664, 66030), (9920, 64326), (10721, 59520), (11005, 57984), (11360, 56172), (11904, 53605), (12080, 52824), (13206, 48320), (13632, 46810), (14043, 45440), (14496, 44020), (14880, 42884), (17040, 37448), (17608, 36240), (18120, 35216), (18724, 34080), (19328, 33015), (19840, 32163), (21442, 29760), (22010, 28992), (22720, 28086), (23405, 27264), (24160, 26412)]