261342720

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 320

約数和(自身を含む): 982080000

約数和(自身を除く): 720737280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 90, 95, 96, 108, 114, 120, 128, 135, 144, 152, 160, 171, 180, 190, 192, 199, 216, 228, 240, 256, 270, 285, 288, 304, 320, 342, 360, 380, 384, 398, 432, 456, 480, 512, 513, 540, 570, 576, 597, 608, 640, 684, 720, 760, 768, 796, 855, 864, 912, 960, 995, 1026, 1080, 1140, 1152, 1194, 1216, 1280, 1368, 1440, 1520, 1536, 1592, 1710, 1728, 1791, 1824, 1920, 1990, 2052, 2160, 2280, 2304, 2388, 2432, 2560, 2565, 2736, 2880, 2985, 3040, 3184, 3420, 3456, 3582, 3648, 3781, 3840, 3980, 4104, 4320, 4560, 4608, 4776, 4864, 5130, 5373, 5472, 5760, 5970, 6080, 6368, 6840, 6912, 7164, 7296, 7562, 7680, 7960, 8208, 8640, 8955, 9120, 9552, 9728, 10260, 10746, 10944, 11343, 11520, 11940, 12160, 12736, 13680, 13824, 14328, 14592, 15124, 15920, 16416, 17280, 17910, 18240, 18905, 19104, 20520, 21492, 21888, 22686, 23040, 23880, 24320, 25472, 26865, 27360, 28656, 29184, 30248, 31840, 32832, 34029, 34560, 35820, 36480, 37810, 38208, 41040, 42984, 43776, 45372, 47760, 48640, 50944, 53730, 54720, 56715, 57312, 60496, 63680, 65664, 68058, 69120, 71640, 72960, 75620, 76416, 82080, 85968, 87552, 90744, 95520, 101888, 102087, 107460, 109440, 113430, 114624, 120992, 127360, 131328, 136116, 143280, 145920, 151240, 152832, 164160, 170145, 171936, 181488, 191040, 204174, 214920, 218880, 226860, 229248, 241984, 254720, 262656, 272232, 286560, 302480, 305664, 328320, 340290, 343872, 362976, 382080, 408348, 429840, 437760, 453720, 458496, 483968, 509440, 510435, 544464, 573120, 604960, 656640, 680580, 687744, 725952, 764160, 816696, 859680, 907440, 916992, 967936, 1020870, 1088928, 1146240, 1209920, 1313280, 1361160, 1375488, 1451904, 1528320, 1633392, 1719360, 1814880, 1935872, 2041740, 2177856, 2292480, 2419840, 2722320, 2750976, 2903808, 3266784, 3438720, 3629760, 4083480, 4355712, 4584960, 4839680, 5444640, 5807616, 6533568, 6877440, 7259520, 8166960, 8711424, 9679360, 10889280, 13067136, 13754880, 14519040, 16333920, 17422848, 21778560, 26134272, 29038080, 32667840, 43557120, 52268544, 65335680, 87114240, 130671360, 261342720]

約数ペア:

[(1, 261342720), (2, 130671360), (3, 87114240), (4, 65335680), (5, 52268544), (6, 43557120), (8, 32667840), (9, 29038080), (10, 26134272), (12, 21778560), (15, 17422848), (16, 16333920), (18, 14519040), (19, 13754880), (20, 13067136), (24, 10889280), (27, 9679360), (30, 8711424), (32, 8166960), (36, 7259520), (38, 6877440), (40, 6533568), (45, 5807616), (48, 5444640), (54, 4839680), (57, 4584960), (60, 4355712), (64, 4083480), (72, 3629760), (76, 3438720), (80, 3266784), (90, 2903808), (95, 2750976), (96, 2722320), (108, 2419840), (114, 2292480), (120, 2177856), (128, 2041740), (135, 1935872), (144, 1814880), (152, 1719360), (160, 1633392), (171, 1528320), (180, 1451904), (190, 1375488), (192, 1361160), (199, 1313280), (216, 1209920), (228, 1146240), (240, 1088928), (256, 1020870), (270, 967936), (285, 916992), (288, 907440), (304, 859680), (320, 816696), (342, 764160), (360, 725952), (380, 687744), (384, 680580), (398, 656640), (432, 604960), (456, 573120), (480, 544464), (512, 510435), (513, 509440), (540, 483968), (570, 458496), (576, 453720), (597, 437760), (608, 429840), (640, 408348), (684, 382080), (720, 362976), (760, 343872), (768, 340290), (796, 328320), (855, 305664), (864, 302480), (912, 286560), (960, 272232), (995, 262656), (1026, 254720), (1080, 241984), (1140, 229248), (1152, 226860), (1194, 218880), (1216, 214920), (1280, 204174), (1368, 191040), (1440, 181488), (1520, 171936), (1536, 170145), (1592, 164160), (1710, 152832), (1728, 151240), (1791, 145920), (1824, 143280), (1920, 136116), (1990, 131328), (2052, 127360), (2160, 120992), (2280, 114624), (2304, 113430), (2388, 109440), (2432, 107460), (2560, 102087), (2565, 101888), (2736, 95520), (2880, 90744), (2985, 87552), (3040, 85968), (3184, 82080), (3420, 76416), (3456, 75620), (3582, 72960), (3648, 71640), (3781, 69120), (3840, 68058), (3980, 65664), (4104, 63680), (4320, 60496), (4560, 57312), (4608, 56715), (4776, 54720), (4864, 53730), (5130, 50944), (5373, 48640), (5472, 47760), (5760, 45372), (5970, 43776), (6080, 42984), (6368, 41040), (6840, 38208), (6912, 37810), (7164, 36480), (7296, 35820), (7562, 34560), (7680, 34029), (7960, 32832), (8208, 31840), (8640, 30248), (8955, 29184), (9120, 28656), (9552, 27360), (9728, 26865), (10260, 25472), (10746, 24320), (10944, 23880), (11343, 23040), (11520, 22686), (11940, 21888), (12160, 21492), (12736, 20520), (13680, 19104), (13824, 18905), (14328, 18240), (14592, 17910), (15124, 17280), (15920, 16416)]