641387520

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:511

約数の個数: 264

約数和(自身を含む): 2299190400

約数和(自身を除く): 1657802880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 256, 279, 288, 310, 320, 360, 372, 384, 449, 465, 480, 496, 512, 558, 576, 620, 640, 720, 744, 768, 898, 930, 960, 992, 1024, 1116, 1152, 1240, 1280, 1347, 1395, 1440, 1488, 1536, 1796, 1860, 1920, 1984, 2232, 2245, 2304, 2480, 2560, 2694, 2790, 2880, 2976, 3072, 3592, 3720, 3840, 3968, 4041, 4464, 4490, 4608, 4960, 5120, 5388, 5580, 5760, 5952, 6735, 7184, 7440, 7680, 7936, 8082, 8928, 8980, 9216, 9920, 10776, 11160, 11520, 11904, 13470, 13919, 14368, 14880, 15360, 15872, 16164, 17856, 17960, 19840, 20205, 21552, 22320, 23040, 23808, 26940, 27838, 28736, 29760, 31744, 32328, 35712, 35920, 39680, 40410, 41757, 43104, 44640, 46080, 47616, 53880, 55676, 57472, 59520, 64656, 69595, 71424, 71840, 79360, 80820, 83514, 86208, 89280, 95232, 107760, 111352, 114944, 119040, 125271, 129312, 139190, 142848, 143680, 158720, 161640, 167028, 172416, 178560, 208785, 215520, 222704, 229888, 238080, 250542, 258624, 278380, 285696, 287360, 323280, 334056, 344832, 357120, 417570, 431040, 445408, 459776, 476160, 501084, 517248, 556760, 574720, 626355, 646560, 668112, 689664, 714240, 835140, 862080, 890816, 1002168, 1034496, 1113520, 1149440, 1252710, 1293120, 1336224, 1379328, 1428480, 1670280, 1724160, 1781632, 2004336, 2068992, 2227040, 2298880, 2505420, 2586240, 2672448, 3340560, 3448320, 3563264, 4008672, 4137984, 4454080, 5010840, 5172480, 5344896, 6681120, 6896640, 7126528, 8017344, 8908160, 10021680, 10344960, 10689792, 13362240, 14253056, 16034688, 17816320, 20043360, 20689920, 21379584, 26724480, 32069376, 35632640, 40086720, 42759168, 53448960, 64138752, 71265280, 80173440, 106897920, 128277504, 160346880, 213795840, 320693760, 641387520]

約数ペア:

[(1, 641387520), (2, 320693760), (3, 213795840), (4, 160346880), (5, 128277504), (6, 106897920), (8, 80173440), (9, 71265280), (10, 64138752), (12, 53448960), (15, 42759168), (16, 40086720), (18, 35632640), (20, 32069376), (24, 26724480), (30, 21379584), (31, 20689920), (32, 20043360), (36, 17816320), (40, 16034688), (45, 14253056), (48, 13362240), (60, 10689792), (62, 10344960), (64, 10021680), (72, 8908160), (80, 8017344), (90, 7126528), (93, 6896640), (96, 6681120), (120, 5344896), (124, 5172480), (128, 5010840), (144, 4454080), (155, 4137984), (160, 4008672), (180, 3563264), (186, 3448320), (192, 3340560), (240, 2672448), (248, 2586240), (256, 2505420), (279, 2298880), (288, 2227040), (310, 2068992), (320, 2004336), (360, 1781632), (372, 1724160), (384, 1670280), (449, 1428480), (465, 1379328), (480, 1336224), (496, 1293120), (512, 1252710), (558, 1149440), (576, 1113520), (620, 1034496), (640, 1002168), (720, 890816), (744, 862080), (768, 835140), (898, 714240), (930, 689664), (960, 668112), (992, 646560), (1024, 626355), (1116, 574720), (1152, 556760), (1240, 517248), (1280, 501084), (1347, 476160), (1395, 459776), (1440, 445408), (1488, 431040), (1536, 417570), (1796, 357120), (1860, 344832), (1920, 334056), (1984, 323280), (2232, 287360), (2245, 285696), (2304, 278380), (2480, 258624), (2560, 250542), (2694, 238080), (2790, 229888), (2880, 222704), (2976, 215520), (3072, 208785), (3592, 178560), (3720, 172416), (3840, 167028), (3968, 161640), (4041, 158720), (4464, 143680), (4490, 142848), (4608, 139190), (4960, 129312), (5120, 125271), (5388, 119040), (5580, 114944), (5760, 111352), (5952, 107760), (6735, 95232), (7184, 89280), (7440, 86208), (7680, 83514), (7936, 80820), (8082, 79360), (8928, 71840), (8980, 71424), (9216, 69595), (9920, 64656), (10776, 59520), (11160, 57472), (11520, 55676), (11904, 53880), (13470, 47616), (13919, 46080), (14368, 44640), (14880, 43104), (15360, 41757), (15872, 40410), (16164, 39680), (17856, 35920), (17960, 35712), (19840, 32328), (20205, 31744), (21552, 29760), (22320, 28736), (23040, 27838), (23808, 26940)]