21451186560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{941}}^1$

素因数の和:1377

約数の個数: 256

約数和(自身を含む): 70840811520

約数和(自身を除く): 49389624960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 383, 384, 465, 480, 496, 620, 640, 744, 766, 930, 941, 960, 992, 1149, 1240, 1488, 1532, 1860, 1882, 1915, 1920, 1984, 2298, 2480, 2823, 2976, 3064, 3720, 3764, 3830, 3968, 4596, 4705, 4960, 5646, 5745, 5952, 6128, 7440, 7528, 7660, 9192, 9410, 9920, 11292, 11490, 11873, 11904, 12256, 14115, 14880, 15056, 15320, 18384, 18820, 19840, 22584, 22980, 23746, 24512, 28230, 29171, 29760, 30112, 30640, 35619, 36768, 37640, 45168, 45960, 47492, 49024, 56460, 58342, 59365, 59520, 60224, 61280, 71238, 73536, 75280, 87513, 90336, 91920, 94984, 112920, 116684, 118730, 120448, 122560, 142476, 145855, 147072, 150560, 175026, 178095, 180672, 183840, 189968, 225840, 233368, 237460, 245120, 284952, 291710, 301120, 350052, 356190, 360403, 361344, 367680, 379936, 437565, 451680, 466736, 474920, 569904, 583420, 602240, 700104, 712380, 720806, 735360, 759872, 875130, 903360, 933472, 949840, 1081209, 1139808, 1166840, 1400208, 1424760, 1441612, 1519744, 1750260, 1802015, 1806720, 1866944, 1899680, 2162418, 2279616, 2333680, 2800416, 2849520, 2883224, 3500520, 3604030, 3733888, 3799360, 4324836, 4559232, 4667360, 5406045, 5600832, 5699040, 5766448, 7001040, 7208060, 7598720, 8649672, 9334720, 10812090, 11172493, 11201664, 11398080, 11532896, 14002080, 14416120, 17299344, 18669440, 21624180, 22344986, 22796160, 23065792, 28004160, 28832240, 33517479, 34598688, 43248360, 44689972, 46131584, 55862465, 56008320, 57664480, 67034958, 69197376, 86496720, 89379944, 111724930, 115328960, 134069916, 138394752, 167587395, 172993440, 178759888, 223449860, 230657920, 268139832, 335174790, 345986880, 357519776, 446899720, 536279664, 670349580, 691973760, 715039552, 893799440, 1072559328, 1340699160, 1430079104, 1787598880, 2145118656, 2681398320, 3575197760, 4290237312, 5362796640, 7150395520, 10725593280, 21451186560]

約数ペア:

[(1, 21451186560), (2, 10725593280), (3, 7150395520), (4, 5362796640), (5, 4290237312), (6, 3575197760), (8, 2681398320), (10, 2145118656), (12, 1787598880), (15, 1430079104), (16, 1340699160), (20, 1072559328), (24, 893799440), (30, 715039552), (31, 691973760), (32, 670349580), (40, 536279664), (48, 446899720), (60, 357519776), (62, 345986880), (64, 335174790), (80, 268139832), (93, 230657920), (96, 223449860), (120, 178759888), (124, 172993440), (128, 167587395), (155, 138394752), (160, 134069916), (186, 115328960), (192, 111724930), (240, 89379944), (248, 86496720), (310, 69197376), (320, 67034958), (372, 57664480), (383, 56008320), (384, 55862465), (465, 46131584), (480, 44689972), (496, 43248360), (620, 34598688), (640, 33517479), (744, 28832240), (766, 28004160), (930, 23065792), (941, 22796160), (960, 22344986), (992, 21624180), (1149, 18669440), (1240, 17299344), (1488, 14416120), (1532, 14002080), (1860, 11532896), (1882, 11398080), (1915, 11201664), (1920, 11172493), (1984, 10812090), (2298, 9334720), (2480, 8649672), (2823, 7598720), (2976, 7208060), (3064, 7001040), (3720, 5766448), (3764, 5699040), (3830, 5600832), (3968, 5406045), (4596, 4667360), (4705, 4559232), (4960, 4324836), (5646, 3799360), (5745, 3733888), (5952, 3604030), (6128, 3500520), (7440, 2883224), (7528, 2849520), (7660, 2800416), (9192, 2333680), (9410, 2279616), (9920, 2162418), (11292, 1899680), (11490, 1866944), (11873, 1806720), (11904, 1802015), (12256, 1750260), (14115, 1519744), (14880, 1441612), (15056, 1424760), (15320, 1400208), (18384, 1166840), (18820, 1139808), (19840, 1081209), (22584, 949840), (22980, 933472), (23746, 903360), (24512, 875130), (28230, 759872), (29171, 735360), (29760, 720806), (30112, 712380), (30640, 700104), (35619, 602240), (36768, 583420), (37640, 569904), (45168, 474920), (45960, 466736), (47492, 451680), (49024, 437565), (56460, 379936), (58342, 367680), (59365, 361344), (59520, 360403), (60224, 356190), (61280, 350052), (71238, 301120), (73536, 291710), (75280, 284952), (87513, 245120), (90336, 237460), (91920, 233368), (94984, 225840), (112920, 189968), (116684, 183840), (118730, 180672), (120448, 178095), (122560, 175026), (142476, 150560), (145855, 147072)]