638641920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1033}}^1$

素因数の和:1087

約数の個数: 288

約数和(自身を含む): 2434747392

約数和(自身を除く): 1796105472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 128, 138, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 256, 276, 280, 320, 322, 336, 345, 368, 384, 420, 448, 460, 480, 483, 552, 560, 640, 644, 672, 690, 736, 768, 805, 840, 896, 920, 960, 966, 1033, 1104, 1120, 1280, 1288, 1344, 1380, 1472, 1610, 1680, 1792, 1840, 1920, 1932, 2066, 2208, 2240, 2415, 2576, 2688, 2760, 2944, 3099, 3220, 3360, 3680, 3840, 3864, 4132, 4416, 4480, 4830, 5152, 5165, 5376, 5520, 5888, 6198, 6440, 6720, 7231, 7360, 7728, 8264, 8832, 8960, 9660, 10304, 10330, 11040, 12396, 12880, 13440, 14462, 14720, 15456, 15495, 16528, 17664, 19320, 20608, 20660, 21693, 22080, 23759, 24792, 25760, 26880, 28924, 29440, 30912, 30990, 33056, 36155, 38640, 41216, 41320, 43386, 44160, 47518, 49584, 51520, 57848, 61824, 61980, 66112, 71277, 72310, 77280, 82640, 86772, 88320, 95036, 99168, 103040, 108465, 115696, 118795, 123648, 123960, 132224, 142554, 144620, 154560, 165280, 166313, 173544, 190072, 198336, 206080, 216930, 231392, 237590, 247920, 264448, 285108, 289240, 309120, 330560, 332626, 347088, 356385, 380144, 396672, 433860, 462784, 475180, 495840, 498939, 570216, 578480, 618240, 661120, 665252, 694176, 712770, 760288, 793344, 831565, 867720, 925568, 950360, 991680, 997878, 1140432, 1156960, 1322240, 1330504, 1388352, 1425540, 1520576, 1663130, 1735440, 1851136, 1900720, 1983360, 1995756, 2280864, 2313920, 2494695, 2661008, 2776704, 2851080, 3041152, 3326260, 3470880, 3801440, 3966720, 3991512, 4561728, 4627840, 4989390, 5322016, 5553408, 5702160, 6082304, 6652520, 6941760, 7602880, 7983024, 9123456, 9255680, 9978780, 10644032, 11404320, 13305040, 13883520, 15205760, 15966048, 18246912, 19957560, 21288064, 22808640, 26610080, 27767040, 30411520, 31932096, 39915120, 42576128, 45617280, 53220160, 63864192, 79830240, 91234560, 106440320, 127728384, 159660480, 212880640, 319320960, 638641920]

約数ペア:

[(1, 638641920), (2, 319320960), (3, 212880640), (4, 159660480), (5, 127728384), (6, 106440320), (7, 91234560), (8, 79830240), (10, 63864192), (12, 53220160), (14, 45617280), (15, 42576128), (16, 39915120), (20, 31932096), (21, 30411520), (23, 27767040), (24, 26610080), (28, 22808640), (30, 21288064), (32, 19957560), (35, 18246912), (40, 15966048), (42, 15205760), (46, 13883520), (48, 13305040), (56, 11404320), (60, 10644032), (64, 9978780), (69, 9255680), (70, 9123456), (80, 7983024), (84, 7602880), (92, 6941760), (96, 6652520), (105, 6082304), (112, 5702160), (115, 5553408), (120, 5322016), (128, 4989390), (138, 4627840), (140, 4561728), (160, 3991512), (161, 3966720), (168, 3801440), (184, 3470880), (192, 3326260), (210, 3041152), (224, 2851080), (230, 2776704), (240, 2661008), (256, 2494695), (276, 2313920), (280, 2280864), (320, 1995756), (322, 1983360), (336, 1900720), (345, 1851136), (368, 1735440), (384, 1663130), (420, 1520576), (448, 1425540), (460, 1388352), (480, 1330504), (483, 1322240), (552, 1156960), (560, 1140432), (640, 997878), (644, 991680), (672, 950360), (690, 925568), (736, 867720), (768, 831565), (805, 793344), (840, 760288), (896, 712770), (920, 694176), (960, 665252), (966, 661120), (1033, 618240), (1104, 578480), (1120, 570216), (1280, 498939), (1288, 495840), (1344, 475180), (1380, 462784), (1472, 433860), (1610, 396672), (1680, 380144), (1792, 356385), (1840, 347088), (1920, 332626), (1932, 330560), (2066, 309120), (2208, 289240), (2240, 285108), (2415, 264448), (2576, 247920), (2688, 237590), (2760, 231392), (2944, 216930), (3099, 206080), (3220, 198336), (3360, 190072), (3680, 173544), (3840, 166313), (3864, 165280), (4132, 154560), (4416, 144620), (4480, 142554), (4830, 132224), (5152, 123960), (5165, 123648), (5376, 118795), (5520, 115696), (5888, 108465), (6198, 103040), (6440, 99168), (6720, 95036), (7231, 88320), (7360, 86772), (7728, 82640), (8264, 77280), (8832, 72310), (8960, 71277), (9660, 66112), (10304, 61980), (10330, 61824), (11040, 57848), (12396, 51520), (12880, 49584), (13440, 47518), (14462, 44160), (14720, 43386), (15456, 41320), (15495, 41216), (16528, 38640), (17664, 36155), (19320, 33056), (20608, 30990), (20660, 30912), (21693, 29440), (22080, 28924), (23759, 26880), (24792, 25760)]