644394240

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 432

約数和(自身を含む): 2609582976

約数和(自身を除く): 1965188736

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 61, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 122, 126, 128, 131, 140, 144, 160, 168, 180, 183, 192, 210, 224, 240, 244, 252, 256, 262, 280, 288, 305, 315, 320, 336, 360, 366, 384, 393, 420, 427, 448, 480, 488, 504, 524, 549, 560, 576, 610, 630, 640, 655, 672, 720, 732, 768, 786, 840, 854, 896, 915, 917, 960, 976, 1008, 1048, 1098, 1120, 1152, 1179, 1220, 1260, 1280, 1281, 1310, 1344, 1440, 1464, 1572, 1680, 1708, 1792, 1830, 1834, 1920, 1952, 1965, 2016, 2096, 2135, 2196, 2240, 2304, 2358, 2440, 2520, 2562, 2620, 2688, 2745, 2751, 2880, 2928, 3144, 3360, 3416, 3660, 3668, 3840, 3843, 3904, 3930, 4032, 4192, 4270, 4392, 4480, 4585, 4716, 4880, 5040, 5124, 5240, 5376, 5490, 5502, 5760, 5856, 5895, 6288, 6405, 6720, 6832, 7320, 7336, 7686, 7808, 7860, 7991, 8064, 8253, 8384, 8540, 8784, 8960, 9170, 9432, 9760, 10080, 10248, 10480, 10980, 11004, 11520, 11712, 11790, 12576, 12810, 13440, 13664, 13755, 14640, 14672, 15372, 15616, 15720, 15982, 16128, 16506, 16768, 17080, 17568, 18340, 18864, 19215, 19520, 20160, 20496, 20960, 21960, 22008, 23424, 23580, 23973, 25152, 25620, 26880, 27328, 27510, 29280, 29344, 30744, 31440, 31964, 33012, 33536, 34160, 35136, 36680, 37728, 38430, 39040, 39955, 40320, 40992, 41265, 41920, 43920, 44016, 46848, 47160, 47946, 50304, 51240, 54656, 55020, 55937, 58560, 58688, 61488, 62880, 63928, 66024, 68320, 70272, 71919, 73360, 75456, 76860, 78080, 79910, 80640, 81984, 82530, 83840, 87840, 88032, 94320, 95892, 100608, 102480, 109312, 110040, 111874, 117120, 117376, 119865, 122976, 125760, 127856, 132048, 136640, 140544, 143838, 146720, 150912, 153720, 159820, 163968, 165060, 167680, 167811, 175680, 176064, 188640, 191784, 204960, 220080, 223748, 234240, 234752, 239730, 245952, 251520, 255712, 264096, 273280, 279685, 287676, 293440, 301824, 307440, 319640, 327936, 330120, 335622, 351360, 352128, 359595, 377280, 383568, 409920, 440160, 447496, 479460, 491904, 503040, 503433, 511424, 528192, 546560, 559370, 575352, 586880, 614880, 639280, 660240, 671244, 702720, 704256, 719190, 754560, 767136, 819840, 839055, 880320, 894992, 958920, 983808, 1006866, 1022848, 1056384, 1118740, 1150704, 1173760, 1229760, 1278560, 1320480, 1342488, 1438380, 1509120, 1534272, 1639680, 1678110, 1760640, 1789984, 1917840, 2013732, 2045696, 2112768, 2237480, 2301408, 2459520, 2517165, 2557120, 2640960, 2684976, 2876760, 3068544, 3356220, 3521280, 3579968, 3835680, 4027464, 4474960, 4602816, 4919040, 5034330, 5114240, 5281920, 5369952, 5753520, 6137088, 6712440, 7159936, 7671360, 8054928, 8949920, 9205632, 10068660, 10228480, 10563840, 10739904, 11507040, 13424880, 14319872, 15342720, 16109856, 17899840, 18411264, 20137320, 21479808, 23014080, 26849760, 30685440, 32219712, 35799680, 40274640, 42959616, 46028160, 53699520, 64439424, 71599360, 80549280, 92056320, 107399040, 128878848, 161098560, 214798080, 322197120, 644394240]

約数ペア:

[(1, 644394240), (2, 322197120), (3, 214798080), (4, 161098560), (5, 128878848), (6, 107399040), (7, 92056320), (8, 80549280), (9, 71599360), (10, 64439424), (12, 53699520), (14, 46028160), (15, 42959616), (16, 40274640), (18, 35799680), (20, 32219712), (21, 30685440), (24, 26849760), (28, 23014080), (30, 21479808), (32, 20137320), (35, 18411264), (36, 17899840), (40, 16109856), (42, 15342720), (45, 14319872), (48, 13424880), (56, 11507040), (60, 10739904), (61, 10563840), (63, 10228480), (64, 10068660), (70, 9205632), (72, 8949920), (80, 8054928), (84, 7671360), (90, 7159936), (96, 6712440), (105, 6137088), (112, 5753520), (120, 5369952), (122, 5281920), (126, 5114240), (128, 5034330), (131, 4919040), (140, 4602816), (144, 4474960), (160, 4027464), (168, 3835680), (180, 3579968), (183, 3521280), (192, 3356220), (210, 3068544), (224, 2876760), (240, 2684976), (244, 2640960), (252, 2557120), (256, 2517165), (262, 2459520), (280, 2301408), (288, 2237480), (305, 2112768), (315, 2045696), (320, 2013732), (336, 1917840), (360, 1789984), (366, 1760640), (384, 1678110), (393, 1639680), (420, 1534272), (427, 1509120), (448, 1438380), (480, 1342488), (488, 1320480), (504, 1278560), (524, 1229760), (549, 1173760), (560, 1150704), (576, 1118740), (610, 1056384), (630, 1022848), (640, 1006866), (655, 983808), (672, 958920), (720, 894992), (732, 880320), (768, 839055), (786, 819840), (840, 767136), (854, 754560), (896, 719190), (915, 704256), (917, 702720), (960, 671244), (976, 660240), (1008, 639280), (1048, 614880), (1098, 586880), (1120, 575352), (1152, 559370), (1179, 546560), (1220, 528192), (1260, 511424), (1280, 503433), (1281, 503040), (1310, 491904), (1344, 479460), (1440, 447496), (1464, 440160), (1572, 409920), (1680, 383568), (1708, 377280), (1792, 359595), (1830, 352128), (1834, 351360), (1920, 335622), (1952, 330120), (1965, 327936), (2016, 319640), (2096, 307440), (2135, 301824), (2196, 293440), (2240, 287676), (2304, 279685), (2358, 273280), (2440, 264096), (2520, 255712), (2562, 251520), (2620, 245952), (2688, 239730), (2745, 234752), (2751, 234240), (2880, 223748), (2928, 220080), (3144, 204960), (3360, 191784), (3416, 188640), (3660, 176064), (3668, 175680), (3840, 167811), (3843, 167680), (3904, 165060), (3930, 163968), (4032, 159820), (4192, 153720), (4270, 150912), (4392, 146720), (4480, 143838), (4585, 140544), (4716, 136640), (4880, 132048), (5040, 127856), (5124, 125760), (5240, 122976), (5376, 119865), (5490, 117376), (5502, 117120), (5760, 111874), (5856, 110040), (5895, 109312), (6288, 102480), (6405, 100608), (6720, 95892), (6832, 94320), (7320, 88032), (7336, 87840), (7686, 83840), (7808, 82530), (7860, 81984), (7991, 80640), (8064, 79910), (8253, 78080), (8384, 76860), (8540, 75456), (8784, 73360), (8960, 71919), (9170, 70272), (9432, 68320), (9760, 66024), (10080, 63928), (10248, 62880), (10480, 61488), (10980, 58688), (11004, 58560), (11520, 55937), (11712, 55020), (11790, 54656), (12576, 51240), (12810, 50304), (13440, 47946), (13664, 47160), (13755, 46848), (14640, 44016), (14672, 43920), (15372, 41920), (15616, 41265), (15720, 40992), (15982, 40320), (16128, 39955), (16506, 39040), (16768, 38430), (17080, 37728), (17568, 36680), (18340, 35136), (18864, 34160), (19215, 33536), (19520, 33012), (20160, 31964), (20496, 31440), (20960, 30744), (21960, 29344), (22008, 29280), (23424, 27510), (23580, 27328), (23973, 26880), (25152, 25620)]