257631360

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:719

約数の個数: 256

約数和(自身を含む): 972345600

約数和(自身を除く): 714714240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 64, 70, 80, 84, 87, 96, 105, 112, 116, 120, 128, 140, 145, 160, 168, 174, 192, 203, 210, 224, 232, 240, 280, 290, 320, 336, 348, 384, 406, 420, 435, 448, 464, 480, 560, 580, 609, 640, 661, 672, 696, 812, 840, 870, 896, 928, 960, 1015, 1120, 1160, 1218, 1322, 1344, 1392, 1624, 1680, 1740, 1856, 1920, 1983, 2030, 2240, 2320, 2436, 2644, 2688, 2784, 3045, 3248, 3305, 3360, 3480, 3712, 3966, 4060, 4480, 4627, 4640, 4872, 5288, 5568, 6090, 6496, 6610, 6720, 6960, 7932, 8120, 9254, 9280, 9744, 9915, 10576, 11136, 12180, 12992, 13220, 13440, 13881, 13920, 15864, 16240, 18508, 18560, 19169, 19488, 19830, 21152, 23135, 24360, 25984, 26440, 27762, 27840, 31728, 32480, 37016, 38338, 38976, 39660, 42304, 46270, 48720, 52880, 55524, 55680, 57507, 63456, 64960, 69405, 74032, 76676, 77952, 79320, 84608, 92540, 95845, 97440, 105760, 111048, 115014, 126912, 129920, 134183, 138810, 148064, 153352, 158640, 185080, 191690, 194880, 211520, 222096, 230028, 253824, 268366, 277620, 287535, 296128, 306704, 317280, 370160, 383380, 389760, 402549, 423040, 444192, 460056, 536732, 555240, 575070, 592256, 613408, 634560, 670915, 740320, 766760, 805098, 888384, 920112, 1073464, 1110480, 1150140, 1226816, 1269120, 1341830, 1480640, 1533520, 1610196, 1776768, 1840224, 2012745, 2146928, 2220960, 2300280, 2453632, 2683660, 2961280, 3067040, 3220392, 3680448, 4025490, 4293856, 4441920, 4600560, 5367320, 6134080, 6440784, 7360896, 8050980, 8587712, 8883840, 9201120, 10734640, 12268160, 12881568, 16101960, 17175424, 18402240, 21469280, 25763136, 32203920, 36804480, 42938560, 51526272, 64407840, 85877120, 128815680, 257631360]

約数ペア:

[(1, 257631360), (2, 128815680), (3, 85877120), (4, 64407840), (5, 51526272), (6, 42938560), (7, 36804480), (8, 32203920), (10, 25763136), (12, 21469280), (14, 18402240), (15, 17175424), (16, 16101960), (20, 12881568), (21, 12268160), (24, 10734640), (28, 9201120), (29, 8883840), (30, 8587712), (32, 8050980), (35, 7360896), (40, 6440784), (42, 6134080), (48, 5367320), (56, 4600560), (58, 4441920), (60, 4293856), (64, 4025490), (70, 3680448), (80, 3220392), (84, 3067040), (87, 2961280), (96, 2683660), (105, 2453632), (112, 2300280), (116, 2220960), (120, 2146928), (128, 2012745), (140, 1840224), (145, 1776768), (160, 1610196), (168, 1533520), (174, 1480640), (192, 1341830), (203, 1269120), (210, 1226816), (224, 1150140), (232, 1110480), (240, 1073464), (280, 920112), (290, 888384), (320, 805098), (336, 766760), (348, 740320), (384, 670915), (406, 634560), (420, 613408), (435, 592256), (448, 575070), (464, 555240), (480, 536732), (560, 460056), (580, 444192), (609, 423040), (640, 402549), (661, 389760), (672, 383380), (696, 370160), (812, 317280), (840, 306704), (870, 296128), (896, 287535), (928, 277620), (960, 268366), (1015, 253824), (1120, 230028), (1160, 222096), (1218, 211520), (1322, 194880), (1344, 191690), (1392, 185080), (1624, 158640), (1680, 153352), (1740, 148064), (1856, 138810), (1920, 134183), (1983, 129920), (2030, 126912), (2240, 115014), (2320, 111048), (2436, 105760), (2644, 97440), (2688, 95845), (2784, 92540), (3045, 84608), (3248, 79320), (3305, 77952), (3360, 76676), (3480, 74032), (3712, 69405), (3966, 64960), (4060, 63456), (4480, 57507), (4627, 55680), (4640, 55524), (4872, 52880), (5288, 48720), (5568, 46270), (6090, 42304), (6496, 39660), (6610, 38976), (6720, 38338), (6960, 37016), (7932, 32480), (8120, 31728), (9254, 27840), (9280, 27762), (9744, 26440), (9915, 25984), (10576, 24360), (11136, 23135), (12180, 21152), (12992, 19830), (13220, 19488), (13440, 19169), (13881, 18560), (13920, 18508), (15864, 16240)]