1247237880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:490

約数の個数: 256

約数和(自身を含む): 4454645760

約数和(自身を除く): 3207407880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 211, 217, 227, 248, 280, 310, 372, 420, 422, 434, 454, 465, 620, 633, 651, 681, 744, 840, 844, 868, 908, 930, 1055, 1085, 1135, 1240, 1266, 1302, 1362, 1477, 1589, 1688, 1736, 1816, 1860, 2110, 2170, 2270, 2532, 2604, 2724, 2954, 3165, 3178, 3255, 3405, 3720, 4220, 4340, 4431, 4540, 4767, 5064, 5208, 5448, 5908, 6330, 6356, 6510, 6541, 6810, 7037, 7385, 7945, 8440, 8680, 8862, 9080, 9534, 11816, 12660, 12712, 13020, 13082, 13620, 14074, 14770, 15890, 17724, 19068, 19623, 21111, 22155, 23835, 25320, 26040, 26164, 27240, 28148, 29540, 31780, 32705, 35185, 35448, 38136, 39246, 42222, 44310, 45787, 47670, 47897, 49259, 52328, 56296, 59080, 63560, 65410, 70370, 78492, 84444, 88620, 91574, 95340, 95794, 98115, 98518, 105555, 130820, 137361, 140740, 143691, 147777, 156984, 168888, 177240, 183148, 190680, 191588, 196230, 197036, 211110, 228935, 239485, 246295, 261640, 274722, 281480, 287382, 295554, 335279, 366296, 383176, 392460, 394072, 422220, 457870, 478970, 492590, 549444, 574764, 591108, 670558, 686805, 718455, 738885, 784920, 844440, 915740, 957940, 985180, 1005837, 1098888, 1149528, 1182216, 1341116, 1373610, 1436910, 1477770, 1484807, 1676395, 1831480, 1915880, 1970360, 2011674, 2682232, 2747220, 2873820, 2955540, 2969614, 3352790, 4023348, 4454421, 5029185, 5494440, 5747640, 5911080, 5939228, 6705580, 7424035, 8046696, 8908842, 10058370, 10393649, 11878456, 13411160, 14848070, 17817684, 20116740, 20787298, 22272105, 29696140, 31180947, 35635368, 40233480, 41574596, 44544210, 51968245, 59392280, 62361894, 83149192, 89088420, 103936490, 124723788, 155904735, 178176840, 207872980, 249447576, 311809470, 415745960, 623618940, 1247237880]

約数ペア:

[(1, 1247237880), (2, 623618940), (3, 415745960), (4, 311809470), (5, 249447576), (6, 207872980), (7, 178176840), (8, 155904735), (10, 124723788), (12, 103936490), (14, 89088420), (15, 83149192), (20, 62361894), (21, 59392280), (24, 51968245), (28, 44544210), (30, 41574596), (31, 40233480), (35, 35635368), (40, 31180947), (42, 29696140), (56, 22272105), (60, 20787298), (62, 20116740), (70, 17817684), (84, 14848070), (93, 13411160), (105, 11878456), (120, 10393649), (124, 10058370), (140, 8908842), (155, 8046696), (168, 7424035), (186, 6705580), (210, 5939228), (211, 5911080), (217, 5747640), (227, 5494440), (248, 5029185), (280, 4454421), (310, 4023348), (372, 3352790), (420, 2969614), (422, 2955540), (434, 2873820), (454, 2747220), (465, 2682232), (620, 2011674), (633, 1970360), (651, 1915880), (681, 1831480), (744, 1676395), (840, 1484807), (844, 1477770), (868, 1436910), (908, 1373610), (930, 1341116), (1055, 1182216), (1085, 1149528), (1135, 1098888), (1240, 1005837), (1266, 985180), (1302, 957940), (1362, 915740), (1477, 844440), (1589, 784920), (1688, 738885), (1736, 718455), (1816, 686805), (1860, 670558), (2110, 591108), (2170, 574764), (2270, 549444), (2532, 492590), (2604, 478970), (2724, 457870), (2954, 422220), (3165, 394072), (3178, 392460), (3255, 383176), (3405, 366296), (3720, 335279), (4220, 295554), (4340, 287382), (4431, 281480), (4540, 274722), (4767, 261640), (5064, 246295), (5208, 239485), (5448, 228935), (5908, 211110), (6330, 197036), (6356, 196230), (6510, 191588), (6541, 190680), (6810, 183148), (7037, 177240), (7385, 168888), (7945, 156984), (8440, 147777), (8680, 143691), (8862, 140740), (9080, 137361), (9534, 130820), (11816, 105555), (12660, 98518), (12712, 98115), (13020, 95794), (13082, 95340), (13620, 91574), (14074, 88620), (14770, 84444), (15890, 78492), (17724, 70370), (19068, 65410), (19623, 63560), (21111, 59080), (22155, 56296), (23835, 52328), (25320, 49259), (26040, 47897), (26164, 47670), (27240, 45787), (28148, 44310), (29540, 42222), (31780, 39246), (32705, 38136), (35185, 35448)]