21508208640

素因数分解:

$2^{11}\times 3^4\times 5^1\times {\mathrm{25931}}^1$

素因数の和:25970

約数の個数: 240

約数和(自身を含む): 77095058040

約数和(自身を除く): 55586849400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2048, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4320, 4608, 5120, 5184, 5760, 6144, 6480, 6912, 7680, 8640, 9216, 10240, 10368, 11520, 12960, 13824, 15360, 17280, 18432, 20736, 23040, 25920, 25931, 27648, 30720, 34560, 41472, 46080, 51840, 51862, 55296, 69120, 77793, 82944, 92160, 103680, 103724, 129655, 138240, 155586, 165888, 207360, 207448, 233379, 259310, 276480, 311172, 388965, 414720, 414896, 466758, 518620, 622344, 700137, 777930, 829440, 829792, 933516, 1037240, 1166895, 1244688, 1400274, 1555860, 1659584, 1867032, 2074480, 2100411, 2333790, 2489376, 2800548, 3111720, 3319168, 3500685, 3734064, 4148960, 4200822, 4667580, 4978752, 5601096, 6223440, 6638336, 7001370, 7468128, 8297920, 8401644, 9335160, 9957504, 10502055, 11202192, 12446880, 13276672, 14002740, 14936256, 16595840, 16803288, 18670320, 19915008, 21004110, 22404384, 24893760, 26553344, 28005480, 29872512, 33191680, 33606576, 37340640, 39830016, 42008220, 44808768, 49787520, 53106688, 56010960, 59745024, 66383360, 67213152, 74681280, 79660032, 84016440, 89617536, 99575040, 112021920, 119490048, 132766720, 134426304, 149362560, 159320064, 168032880, 179235072, 199150080, 224043840, 238980096, 265533440, 268852608, 298725120, 336065760, 358470144, 398300160, 448087680, 477960192, 537705216, 597450240, 672131520, 716940288, 796600320, 896175360, 1075410432, 1194900480, 1344263040, 1433880576, 1792350720, 2150820864, 2389800960, 2688526080, 3584701440, 4301641728, 5377052160, 7169402880, 10754104320, 21508208640]

約数ペア:

[(1, 21508208640), (2, 10754104320), (3, 7169402880), (4, 5377052160), (5, 4301641728), (6, 3584701440), (8, 2688526080), (9, 2389800960), (10, 2150820864), (12, 1792350720), (15, 1433880576), (16, 1344263040), (18, 1194900480), (20, 1075410432), (24, 896175360), (27, 796600320), (30, 716940288), (32, 672131520), (36, 597450240), (40, 537705216), (45, 477960192), (48, 448087680), (54, 398300160), (60, 358470144), (64, 336065760), (72, 298725120), (80, 268852608), (81, 265533440), (90, 238980096), (96, 224043840), (108, 199150080), (120, 179235072), (128, 168032880), (135, 159320064), (144, 149362560), (160, 134426304), (162, 132766720), (180, 119490048), (192, 112021920), (216, 99575040), (240, 89617536), (256, 84016440), (270, 79660032), (288, 74681280), (320, 67213152), (324, 66383360), (360, 59745024), (384, 56010960), (405, 53106688), (432, 49787520), (480, 44808768), (512, 42008220), (540, 39830016), (576, 37340640), (640, 33606576), (648, 33191680), (720, 29872512), (768, 28005480), (810, 26553344), (864, 24893760), (960, 22404384), (1024, 21004110), (1080, 19915008), (1152, 18670320), (1280, 16803288), (1296, 16595840), (1440, 14936256), (1536, 14002740), (1620, 13276672), (1728, 12446880), (1920, 11202192), (2048, 10502055), (2160, 9957504), (2304, 9335160), (2560, 8401644), (2592, 8297920), (2880, 7468128), (3072, 7001370), (3240, 6638336), (3456, 6223440), (3840, 5601096), (4320, 4978752), (4608, 4667580), (5120, 4200822), (5184, 4148960), (5760, 3734064), (6144, 3500685), (6480, 3319168), (6912, 3111720), (7680, 2800548), (8640, 2489376), (9216, 2333790), (10240, 2100411), (10368, 2074480), (11520, 1867032), (12960, 1659584), (13824, 1555860), (15360, 1400274), (17280, 1244688), (18432, 1166895), (20736, 1037240), (23040, 933516), (25920, 829792), (25931, 829440), (27648, 777930), (30720, 700137), (34560, 622344), (41472, 518620), (46080, 466758), (51840, 414896), (51862, 414720), (55296, 388965), (69120, 311172), (77793, 276480), (82944, 259310), (92160, 233379), (103680, 207448), (103724, 207360), (129655, 165888), (138240, 155586)]