257261760

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{1823}}^1$

素因数の和:1860

約数の個数: 252

約数和(自身を含む): 1029907008

約数和(自身を除く): 772645248

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 672, 720, 735, 784, 840, 882, 960, 980, 1008, 1120, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1823, 1960, 2016, 2205, 2240, 2352, 2520, 2880, 2940, 3136, 3360, 3528, 3646, 3920, 4032, 4410, 4704, 5040, 5469, 5880, 6720, 7056, 7292, 7840, 8820, 9115, 9408, 10080, 10938, 11760, 12761, 14112, 14584, 15680, 16407, 17640, 18230, 20160, 21876, 23520, 25522, 27345, 28224, 29168, 32814, 35280, 36460, 38283, 43752, 47040, 51044, 54690, 58336, 63805, 65628, 70560, 72920, 76566, 82035, 87504, 89327, 102088, 109380, 114849, 116672, 127610, 131256, 141120, 145840, 153132, 164070, 175008, 178654, 191415, 204176, 218760, 229698, 255220, 262512, 267981, 291680, 306264, 328140, 350016, 357308, 382830, 408352, 437520, 446635, 459396, 510440, 525024, 535962, 574245, 583360, 612528, 656280, 714616, 765660, 803943, 816704, 875040, 893270, 918792, 1020880, 1050048, 1071924, 1148490, 1225056, 1312560, 1339905, 1429232, 1531320, 1607886, 1750080, 1786540, 1837584, 2041760, 2143848, 2296980, 2450112, 2625120, 2679810, 2858464, 3062640, 3215772, 3573080, 3675168, 4019715, 4083520, 4287696, 4593960, 5250240, 5359620, 5716928, 6125280, 6431544, 7146160, 7350336, 8039430, 8575392, 9187920, 10719240, 12250560, 12863088, 14292320, 16078860, 17150784, 18375840, 21438480, 25726176, 28584640, 32157720, 36751680, 42876960, 51452352, 64315440, 85753920, 128630880, 257261760]

約数ペア:

[(1, 257261760), (2, 128630880), (3, 85753920), (4, 64315440), (5, 51452352), (6, 42876960), (7, 36751680), (8, 32157720), (9, 28584640), (10, 25726176), (12, 21438480), (14, 18375840), (15, 17150784), (16, 16078860), (18, 14292320), (20, 12863088), (21, 12250560), (24, 10719240), (28, 9187920), (30, 8575392), (32, 8039430), (35, 7350336), (36, 7146160), (40, 6431544), (42, 6125280), (45, 5716928), (48, 5359620), (49, 5250240), (56, 4593960), (60, 4287696), (63, 4083520), (64, 4019715), (70, 3675168), (72, 3573080), (80, 3215772), (84, 3062640), (90, 2858464), (96, 2679810), (98, 2625120), (105, 2450112), (112, 2296980), (120, 2143848), (126, 2041760), (140, 1837584), (144, 1786540), (147, 1750080), (160, 1607886), (168, 1531320), (180, 1429232), (192, 1339905), (196, 1312560), (210, 1225056), (224, 1148490), (240, 1071924), (245, 1050048), (252, 1020880), (280, 918792), (288, 893270), (294, 875040), (315, 816704), (320, 803943), (336, 765660), (360, 714616), (392, 656280), (420, 612528), (441, 583360), (448, 574245), (480, 535962), (490, 525024), (504, 510440), (560, 459396), (576, 446635), (588, 437520), (630, 408352), (672, 382830), (720, 357308), (735, 350016), (784, 328140), (840, 306264), (882, 291680), (960, 267981), (980, 262512), (1008, 255220), (1120, 229698), (1176, 218760), (1260, 204176), (1344, 191415), (1440, 178654), (1470, 175008), (1568, 164070), (1680, 153132), (1764, 145840), (1823, 141120), (1960, 131256), (2016, 127610), (2205, 116672), (2240, 114849), (2352, 109380), (2520, 102088), (2880, 89327), (2940, 87504), (3136, 82035), (3360, 76566), (3528, 72920), (3646, 70560), (3920, 65628), (4032, 63805), (4410, 58336), (4704, 54690), (5040, 51044), (5469, 47040), (5880, 43752), (6720, 38283), (7056, 36460), (7292, 35280), (7840, 32814), (8820, 29168), (9115, 28224), (9408, 27345), (10080, 25522), (10938, 23520), (11760, 21876), (12761, 20160), (14112, 18230), (14584, 17640), (15680, 16407)]