21520711680

素因数分解:

$2^{18}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:478

約数の個数: 304

約数和(自身を含む): 74339702304

約数和(自身を除く): 52818990624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 421, 480, 512, 520, 624, 640, 768, 780, 832, 842, 960, 1024, 1040, 1248, 1263, 1280, 1536, 1560, 1664, 1684, 1920, 2048, 2080, 2105, 2496, 2526, 2560, 3072, 3120, 3328, 3368, 3840, 4096, 4160, 4210, 4992, 5052, 5120, 5473, 6144, 6240, 6315, 6656, 6736, 7680, 8192, 8320, 8420, 9984, 10104, 10240, 10946, 12288, 12480, 12630, 13312, 13472, 15360, 16384, 16419, 16640, 16840, 19968, 20208, 20480, 21892, 24576, 24960, 25260, 26624, 26944, 27365, 30720, 32768, 32838, 33280, 33680, 39936, 40416, 40960, 43784, 49152, 49920, 50520, 53248, 53888, 54730, 61440, 65536, 65676, 66560, 67360, 79872, 80832, 81920, 82095, 87568, 98304, 99840, 101040, 106496, 107776, 109460, 122880, 131072, 131352, 133120, 134720, 159744, 161664, 163840, 164190, 175136, 196608, 199680, 202080, 212992, 215552, 218920, 245760, 262144, 262704, 266240, 269440, 319488, 323328, 327680, 328380, 350272, 393216, 399360, 404160, 425984, 431104, 437840, 491520, 525408, 532480, 538880, 638976, 646656, 655360, 656760, 700544, 786432, 798720, 808320, 851968, 862208, 875680, 983040, 1050816, 1064960, 1077760, 1277952, 1293312, 1310720, 1313520, 1401088, 1597440, 1616640, 1703936, 1724416, 1751360, 1966080, 2101632, 2129920, 2155520, 2555904, 2586624, 2627040, 2802176, 3194880, 3233280, 3407872, 3448832, 3502720, 3932160, 4203264, 4259840, 4311040, 5111808, 5173248, 5254080, 5604352, 6389760, 6466560, 6897664, 7005440, 8406528, 8519680, 8622080, 10223616, 10346496, 10508160, 11208704, 12779520, 12933120, 13795328, 14010880, 16813056, 17039360, 17244160, 20692992, 21016320, 22417408, 25559040, 25866240, 27590656, 28021760, 33626112, 34488320, 41385984, 42032640, 44834816, 51118080, 51732480, 55181312, 56043520, 67252224, 68976640, 82771968, 84065280, 89669632, 103464960, 110362624, 112087040, 134504448, 137953280, 165543936, 168130560, 179339264, 206929920, 224174080, 269008896, 275906560, 331087872, 336261120, 358678528, 413859840, 448348160, 538017792, 551813120, 672522240, 717357056, 827719680, 896696320, 1076035584, 1345044480, 1434714112, 1655439360, 1793392640, 2152071168, 2690088960, 3586785280, 4304142336, 5380177920, 7173570560, 10760355840, 21520711680]

約数ペア:

[(1, 21520711680), (2, 10760355840), (3, 7173570560), (4, 5380177920), (5, 4304142336), (6, 3586785280), (8, 2690088960), (10, 2152071168), (12, 1793392640), (13, 1655439360), (15, 1434714112), (16, 1345044480), (20, 1076035584), (24, 896696320), (26, 827719680), (30, 717357056), (32, 672522240), (39, 551813120), (40, 538017792), (48, 448348160), (52, 413859840), (60, 358678528), (64, 336261120), (65, 331087872), (78, 275906560), (80, 269008896), (96, 224174080), (104, 206929920), (120, 179339264), (128, 168130560), (130, 165543936), (156, 137953280), (160, 134504448), (192, 112087040), (195, 110362624), (208, 103464960), (240, 89669632), (256, 84065280), (260, 82771968), (312, 68976640), (320, 67252224), (384, 56043520), (390, 55181312), (416, 51732480), (421, 51118080), (480, 44834816), (512, 42032640), (520, 41385984), (624, 34488320), (640, 33626112), (768, 28021760), (780, 27590656), (832, 25866240), (842, 25559040), (960, 22417408), (1024, 21016320), (1040, 20692992), (1248, 17244160), (1263, 17039360), (1280, 16813056), (1536, 14010880), (1560, 13795328), (1664, 12933120), (1684, 12779520), (1920, 11208704), (2048, 10508160), (2080, 10346496), (2105, 10223616), (2496, 8622080), (2526, 8519680), (2560, 8406528), (3072, 7005440), (3120, 6897664), (3328, 6466560), (3368, 6389760), (3840, 5604352), (4096, 5254080), (4160, 5173248), (4210, 5111808), (4992, 4311040), (5052, 4259840), (5120, 4203264), (5473, 3932160), (6144, 3502720), (6240, 3448832), (6315, 3407872), (6656, 3233280), (6736, 3194880), (7680, 2802176), (8192, 2627040), (8320, 2586624), (8420, 2555904), (9984, 2155520), (10104, 2129920), (10240, 2101632), (10946, 1966080), (12288, 1751360), (12480, 1724416), (12630, 1703936), (13312, 1616640), (13472, 1597440), (15360, 1401088), (16384, 1313520), (16419, 1310720), (16640, 1293312), (16840, 1277952), (19968, 1077760), (20208, 1064960), (20480, 1050816), (21892, 983040), (24576, 875680), (24960, 862208), (25260, 851968), (26624, 808320), (26944, 798720), (27365, 786432), (30720, 700544), (32768, 656760), (32838, 655360), (33280, 646656), (33680, 638976), (39936, 538880), (40416, 532480), (40960, 525408), (43784, 491520), (49152, 437840), (49920, 431104), (50520, 425984), (53248, 404160), (53888, 399360), (54730, 393216), (61440, 350272), (65536, 328380), (65676, 327680), (66560, 323328), (67360, 319488), (79872, 269440), (80832, 266240), (81920, 262704), (82095, 262144), (87568, 245760), (98304, 218920), (99840, 215552), (101040, 212992), (106496, 202080), (107776, 199680), (109460, 196608), (122880, 175136), (131072, 164190), (131352, 163840), (133120, 161664), (134720, 159744)]