256213440

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 336

約数和(自身を含む): 1027054080

約数和(自身を除く): 770840640

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, 56, 60, 63, 64, 70, 71, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 142, 144, 160, 168, 179, 180, 192, 210, 213, 224, 240, 252, 280, 284, 288, 315, 320, 336, 355, 358, 360, 420, 426, 448, 480, 497, 504, 537, 560, 568, 576, 630, 639, 672, 710, 716, 720, 840, 852, 895, 960, 994, 1008, 1065, 1074, 1120, 1136, 1253, 1260, 1278, 1344, 1420, 1432, 1440, 1491, 1611, 1680, 1704, 1790, 1988, 2016, 2130, 2148, 2240, 2272, 2485, 2506, 2520, 2556, 2685, 2840, 2864, 2880, 2982, 3195, 3222, 3360, 3408, 3580, 3759, 3976, 4032, 4260, 4296, 4473, 4544, 4970, 5012, 5040, 5112, 5370, 5680, 5728, 5964, 6265, 6390, 6444, 6720, 6816, 7160, 7455, 7518, 7952, 8055, 8520, 8592, 8946, 9940, 10024, 10080, 10224, 10740, 11277, 11360, 11456, 11928, 12530, 12709, 12780, 12888, 13632, 14320, 14910, 15036, 15904, 16110, 17040, 17184, 17892, 18795, 19880, 20048, 20160, 20448, 21480, 22365, 22554, 22720, 23856, 25060, 25418, 25560, 25776, 28640, 29820, 30072, 31808, 32220, 34080, 34368, 35784, 37590, 38127, 39760, 40096, 40896, 42960, 44730, 45108, 47712, 50120, 50836, 51120, 51552, 56385, 57280, 59640, 60144, 63545, 64440, 68160, 71568, 75180, 76254, 79520, 80192, 85920, 88963, 89460, 90216, 95424, 100240, 101672, 102240, 103104, 112770, 114381, 119280, 120288, 127090, 128880, 143136, 150360, 152508, 159040, 171840, 177926, 178920, 180432, 190635, 200480, 203344, 204480, 225540, 228762, 238560, 240576, 254180, 257760, 266889, 286272, 300720, 305016, 355852, 357840, 360864, 381270, 400960, 406688, 444815, 451080, 457524, 477120, 508360, 515520, 533778, 571905, 601440, 610032, 711704, 715680, 721728, 762540, 800667, 813376, 889630, 902160, 915048, 1016720, 1067556, 1143810, 1202880, 1220064, 1334445, 1423408, 1431360, 1525080, 1601334, 1779260, 1804320, 1830096, 2033440, 2135112, 2287620, 2440128, 2668890, 2846816, 3050160, 3202668, 3558520, 3608640, 3660192, 4003335, 4066880, 4270224, 4575240, 5337780, 5693632, 6100320, 6405336, 7117040, 7320384, 8006670, 8540448, 9150480, 10675560, 12200640, 12810672, 14234080, 16013340, 17080896, 18300960, 21351120, 25621344, 28468160, 32026680, 36601920, 42702240, 51242688, 64053360, 85404480, 128106720, 256213440]

約数ペア:

[(1, 256213440), (2, 128106720), (3, 85404480), (4, 64053360), (5, 51242688), (6, 42702240), (7, 36601920), (8, 32026680), (9, 28468160), (10, 25621344), (12, 21351120), (14, 18300960), (15, 17080896), (16, 16013340), (18, 14234080), (20, 12810672), (21, 12200640), (24, 10675560), (28, 9150480), (30, 8540448), (32, 8006670), (35, 7320384), (36, 7117040), (40, 6405336), (42, 6100320), (45, 5693632), (48, 5337780), (56, 4575240), (60, 4270224), (63, 4066880), (64, 4003335), (70, 3660192), (71, 3608640), (72, 3558520), (80, 3202668), (84, 3050160), (90, 2846816), (96, 2668890), (105, 2440128), (112, 2287620), (120, 2135112), (126, 2033440), (140, 1830096), (142, 1804320), (144, 1779260), (160, 1601334), (168, 1525080), (179, 1431360), (180, 1423408), (192, 1334445), (210, 1220064), (213, 1202880), (224, 1143810), (240, 1067556), (252, 1016720), (280, 915048), (284, 902160), (288, 889630), (315, 813376), (320, 800667), (336, 762540), (355, 721728), (358, 715680), (360, 711704), (420, 610032), (426, 601440), (448, 571905), (480, 533778), (497, 515520), (504, 508360), (537, 477120), (560, 457524), (568, 451080), (576, 444815), (630, 406688), (639, 400960), (672, 381270), (710, 360864), (716, 357840), (720, 355852), (840, 305016), (852, 300720), (895, 286272), (960, 266889), (994, 257760), (1008, 254180), (1065, 240576), (1074, 238560), (1120, 228762), (1136, 225540), (1253, 204480), (1260, 203344), (1278, 200480), (1344, 190635), (1420, 180432), (1432, 178920), (1440, 177926), (1491, 171840), (1611, 159040), (1680, 152508), (1704, 150360), (1790, 143136), (1988, 128880), (2016, 127090), (2130, 120288), (2148, 119280), (2240, 114381), (2272, 112770), (2485, 103104), (2506, 102240), (2520, 101672), (2556, 100240), (2685, 95424), (2840, 90216), (2864, 89460), (2880, 88963), (2982, 85920), (3195, 80192), (3222, 79520), (3360, 76254), (3408, 75180), (3580, 71568), (3759, 68160), (3976, 64440), (4032, 63545), (4260, 60144), (4296, 59640), (4473, 57280), (4544, 56385), (4970, 51552), (5012, 51120), (5040, 50836), (5112, 50120), (5370, 47712), (5680, 45108), (5728, 44730), (5964, 42960), (6265, 40896), (6390, 40096), (6444, 39760), (6720, 38127), (6816, 37590), (7160, 35784), (7455, 34368), (7518, 34080), (7952, 32220), (8055, 31808), (8520, 30072), (8592, 29820), (8946, 28640), (9940, 25776), (10024, 25560), (10080, 25418), (10224, 25060), (10740, 23856), (11277, 22720), (11360, 22554), (11456, 22365), (11928, 21480), (12530, 20448), (12709, 20160), (12780, 20048), (12888, 19880), (13632, 18795), (14320, 17892), (14910, 17184), (15036, 17040), (15904, 16110)]