661194240

素因数分解:

$2^9\times 3^1\times 5^1\times 7^3\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 320

約数和(自身を含む): 2474841600

約数和(自身を除く): 1813647360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 251, 256, 280, 294, 320, 336, 343, 384, 392, 420, 448, 480, 490, 502, 512, 560, 588, 640, 672, 686, 735, 753, 768, 784, 840, 896, 960, 980, 1004, 1029, 1120, 1176, 1255, 1280, 1344, 1372, 1470, 1506, 1536, 1568, 1680, 1715, 1757, 1792, 1920, 1960, 2008, 2058, 2240, 2352, 2510, 2560, 2688, 2744, 2940, 3012, 3136, 3360, 3430, 3514, 3584, 3765, 3840, 3920, 4016, 4116, 4480, 4704, 5020, 5145, 5271, 5376, 5488, 5880, 6024, 6272, 6720, 6860, 7028, 7530, 7680, 7840, 8032, 8232, 8785, 8960, 9408, 10040, 10290, 10542, 10752, 10976, 11760, 12048, 12299, 12544, 13440, 13720, 14056, 15060, 15680, 16064, 16464, 17570, 17920, 18816, 20080, 20580, 21084, 21952, 23520, 24096, 24598, 25088, 26355, 26880, 27440, 28112, 30120, 31360, 32128, 32928, 35140, 36897, 37632, 40160, 41160, 42168, 43904, 47040, 48192, 49196, 52710, 53760, 54880, 56224, 60240, 61495, 62720, 64256, 65856, 70280, 73794, 75264, 80320, 82320, 84336, 86093, 87808, 94080, 96384, 98392, 105420, 109760, 112448, 120480, 122990, 125440, 128512, 131712, 140560, 147588, 160640, 164640, 168672, 172186, 175616, 184485, 188160, 192768, 196784, 210840, 219520, 224896, 240960, 245980, 258279, 263424, 281120, 295176, 321280, 329280, 337344, 344372, 368970, 376320, 385536, 393568, 421680, 430465, 439040, 449792, 481920, 491960, 516558, 526848, 562240, 590352, 642560, 658560, 674688, 688744, 737940, 787136, 843360, 860930, 878080, 899584, 963840, 983920, 1033116, 1124480, 1180704, 1291395, 1317120, 1349376, 1377488, 1475880, 1574272, 1686720, 1721860, 1927680, 1967840, 2066232, 2248960, 2361408, 2582790, 2634240, 2698752, 2754976, 2951760, 3148544, 3373440, 3443720, 3935680, 4132464, 4497920, 4722816, 5165580, 5509952, 5903520, 6297088, 6746880, 6887440, 7871360, 8264928, 9445632, 10331160, 11019904, 11807040, 13493760, 13774880, 15742720, 16529856, 18891264, 20662320, 22039808, 23614080, 27549760, 31485440, 33059712, 41324640, 44079616, 47228160, 55099520, 66119424, 82649280, 94456320, 110199040, 132238848, 165298560, 220398080, 330597120, 661194240]

約数ペア:

[(1, 661194240), (2, 330597120), (3, 220398080), (4, 165298560), (5, 132238848), (6, 110199040), (7, 94456320), (8, 82649280), (10, 66119424), (12, 55099520), (14, 47228160), (15, 44079616), (16, 41324640), (20, 33059712), (21, 31485440), (24, 27549760), (28, 23614080), (30, 22039808), (32, 20662320), (35, 18891264), (40, 16529856), (42, 15742720), (48, 13774880), (49, 13493760), (56, 11807040), (60, 11019904), (64, 10331160), (70, 9445632), (80, 8264928), (84, 7871360), (96, 6887440), (98, 6746880), (105, 6297088), (112, 5903520), (120, 5509952), (128, 5165580), (140, 4722816), (147, 4497920), (160, 4132464), (168, 3935680), (192, 3443720), (196, 3373440), (210, 3148544), (224, 2951760), (240, 2754976), (245, 2698752), (251, 2634240), (256, 2582790), (280, 2361408), (294, 2248960), (320, 2066232), (336, 1967840), (343, 1927680), (384, 1721860), (392, 1686720), (420, 1574272), (448, 1475880), (480, 1377488), (490, 1349376), (502, 1317120), (512, 1291395), (560, 1180704), (588, 1124480), (640, 1033116), (672, 983920), (686, 963840), (735, 899584), (753, 878080), (768, 860930), (784, 843360), (840, 787136), (896, 737940), (960, 688744), (980, 674688), (1004, 658560), (1029, 642560), (1120, 590352), (1176, 562240), (1255, 526848), (1280, 516558), (1344, 491960), (1372, 481920), (1470, 449792), (1506, 439040), (1536, 430465), (1568, 421680), (1680, 393568), (1715, 385536), (1757, 376320), (1792, 368970), (1920, 344372), (1960, 337344), (2008, 329280), (2058, 321280), (2240, 295176), (2352, 281120), (2510, 263424), (2560, 258279), (2688, 245980), (2744, 240960), (2940, 224896), (3012, 219520), (3136, 210840), (3360, 196784), (3430, 192768), (3514, 188160), (3584, 184485), (3765, 175616), (3840, 172186), (3920, 168672), (4016, 164640), (4116, 160640), (4480, 147588), (4704, 140560), (5020, 131712), (5145, 128512), (5271, 125440), (5376, 122990), (5488, 120480), (5880, 112448), (6024, 109760), (6272, 105420), (6720, 98392), (6860, 96384), (7028, 94080), (7530, 87808), (7680, 86093), (7840, 84336), (8032, 82320), (8232, 80320), (8785, 75264), (8960, 73794), (9408, 70280), (10040, 65856), (10290, 64256), (10542, 62720), (10752, 61495), (10976, 60240), (11760, 56224), (12048, 54880), (12299, 53760), (12544, 52710), (13440, 49196), (13720, 48192), (14056, 47040), (15060, 43904), (15680, 42168), (16064, 41160), (16464, 40160), (17570, 37632), (17920, 36897), (18816, 35140), (20080, 32928), (20580, 32128), (21084, 31360), (21952, 30120), (23520, 28112), (24096, 27440), (24598, 26880), (25088, 26355)]