257898240

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:455

約数の個数: 216

約数和(自身を含む): 909400128

約数和(自身を除く): 651501888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 120, 122, 128, 144, 160, 180, 183, 192, 240, 244, 256, 288, 305, 320, 360, 366, 367, 384, 480, 488, 549, 576, 610, 640, 720, 732, 734, 768, 915, 960, 976, 1098, 1101, 1152, 1220, 1280, 1440, 1464, 1468, 1830, 1835, 1920, 1952, 2196, 2202, 2304, 2440, 2745, 2880, 2928, 2936, 3303, 3660, 3670, 3840, 3904, 4392, 4404, 4880, 5490, 5505, 5760, 5856, 5872, 6606, 7320, 7340, 7808, 8784, 8808, 9760, 10980, 11010, 11520, 11712, 11744, 13212, 14640, 14680, 15616, 16515, 17568, 17616, 19520, 21960, 22020, 22387, 23424, 23488, 26424, 29280, 29360, 33030, 35136, 35232, 39040, 43920, 44040, 44774, 46848, 46976, 52848, 58560, 58720, 66060, 67161, 70272, 70464, 78080, 87840, 88080, 89548, 93952, 105696, 111935, 117120, 117440, 132120, 134322, 140544, 140928, 175680, 176160, 179096, 201483, 211392, 223870, 234240, 234880, 264240, 268644, 281856, 335805, 351360, 352320, 358192, 402966, 422784, 447740, 469760, 528480, 537288, 671610, 702720, 704640, 716384, 805932, 845568, 895480, 1007415, 1056960, 1074576, 1343220, 1409280, 1432768, 1611864, 1790960, 2014830, 2113920, 2149152, 2686440, 2865536, 3223728, 3581920, 4029660, 4227840, 4298304, 5372880, 5731072, 6447456, 7163840, 8059320, 8596608, 10745760, 12894912, 14327680, 16118640, 17193216, 21491520, 25789824, 28655360, 32237280, 42983040, 51579648, 64474560, 85966080, 128949120, 257898240]

約数ペア:

[(1, 257898240), (2, 128949120), (3, 85966080), (4, 64474560), (5, 51579648), (6, 42983040), (8, 32237280), (9, 28655360), (10, 25789824), (12, 21491520), (15, 17193216), (16, 16118640), (18, 14327680), (20, 12894912), (24, 10745760), (30, 8596608), (32, 8059320), (36, 7163840), (40, 6447456), (45, 5731072), (48, 5372880), (60, 4298304), (61, 4227840), (64, 4029660), (72, 3581920), (80, 3223728), (90, 2865536), (96, 2686440), (120, 2149152), (122, 2113920), (128, 2014830), (144, 1790960), (160, 1611864), (180, 1432768), (183, 1409280), (192, 1343220), (240, 1074576), (244, 1056960), (256, 1007415), (288, 895480), (305, 845568), (320, 805932), (360, 716384), (366, 704640), (367, 702720), (384, 671610), (480, 537288), (488, 528480), (549, 469760), (576, 447740), (610, 422784), (640, 402966), (720, 358192), (732, 352320), (734, 351360), (768, 335805), (915, 281856), (960, 268644), (976, 264240), (1098, 234880), (1101, 234240), (1152, 223870), (1220, 211392), (1280, 201483), (1440, 179096), (1464, 176160), (1468, 175680), (1830, 140928), (1835, 140544), (1920, 134322), (1952, 132120), (2196, 117440), (2202, 117120), (2304, 111935), (2440, 105696), (2745, 93952), (2880, 89548), (2928, 88080), (2936, 87840), (3303, 78080), (3660, 70464), (3670, 70272), (3840, 67161), (3904, 66060), (4392, 58720), (4404, 58560), (4880, 52848), (5490, 46976), (5505, 46848), (5760, 44774), (5856, 44040), (5872, 43920), (6606, 39040), (7320, 35232), (7340, 35136), (7808, 33030), (8784, 29360), (8808, 29280), (9760, 26424), (10980, 23488), (11010, 23424), (11520, 22387), (11712, 22020), (11744, 21960), (13212, 19520), (14640, 17616), (14680, 17568), (15616, 16515)]