21005441280

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:638

約数の個数: 432

約数和(自身を含む): 75762086400

約数和(自身を除く): 54756645120

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, 131, 144, 155, 160, 180, 186, 192, 240, 248, 256, 262, 279, 288, 310, 320, 360, 372, 384, 393, 449, 465, 480, 496, 524, 558, 576, 620, 640, 655, 720, 744, 768, 786, 898, 930, 960, 992, 1048, 1116, 1152, 1179, 1240, 1280, 1310, 1347, 1395, 1440, 1488, 1572, 1796, 1860, 1920, 1965, 1984, 2096, 2232, 2245, 2304, 2358, 2480, 2620, 2694, 2790, 2880, 2976, 3144, 3592, 3720, 3840, 3930, 3968, 4041, 4061, 4192, 4464, 4490, 4716, 4960, 5240, 5388, 5580, 5760, 5895, 5952, 6288, 6735, 7184, 7440, 7860, 7936, 8082, 8122, 8384, 8928, 8980, 9432, 9920, 10480, 10776, 11160, 11520, 11790, 11904, 12183, 12576, 13470, 13919, 14368, 14880, 15720, 16164, 16244, 16768, 17856, 17960, 18864, 19840, 20205, 20305, 20960, 21552, 22320, 23580, 23808, 24366, 25152, 26940, 27838, 28736, 29760, 31440, 32328, 32488, 33536, 35712, 35920, 36549, 37728, 39680, 40410, 40610, 41757, 41920, 43104, 44640, 47160, 48732, 50304, 53880, 55676, 57472, 58819, 59520, 60915, 62880, 64656, 64976, 69595, 71424, 71840, 73098, 75456, 80820, 81220, 83514, 83840, 86208, 89280, 94320, 97464, 100608, 107760, 111352, 114944, 117638, 119040, 121830, 125271, 125760, 129312, 129952, 139190, 143680, 146196, 150912, 161640, 162440, 167028, 167680, 172416, 176457, 178560, 182745, 188640, 194928, 208785, 215520, 222704, 235276, 243660, 250542, 251520, 258624, 259904, 278380, 287360, 292392, 294095, 301824, 323280, 324880, 334056, 344832, 352914, 357120, 365490, 377280, 389856, 417570, 431040, 445408, 470552, 487320, 501084, 503040, 517248, 519808, 529371, 556760, 574720, 584784, 588190, 626355, 646560, 649760, 668112, 705828, 730980, 754560, 779712, 835140, 862080, 882285, 890816, 941104, 974640, 1002168, 1034496, 1039616, 1058742, 1113520, 1169568, 1176380, 1252710, 1293120, 1299520, 1336224, 1411656, 1461960, 1509120, 1559424, 1670280, 1724160, 1764570, 1781632, 1823389, 1882208, 1949280, 2004336, 2117484, 2227040, 2339136, 2352760, 2505420, 2586240, 2599040, 2646855, 2672448, 2823312, 2923920, 3118848, 3340560, 3529140, 3563264, 3646778, 3764416, 3898560, 4008672, 4234968, 4454080, 4678272, 4705520, 5010840, 5172480, 5198080, 5293710, 5344896, 5470167, 5646624, 5847840, 6681120, 7058280, 7293556, 7528832, 7797120, 8017344, 8469936, 8908160, 9116945, 9356544, 9411040, 10021680, 10587420, 10689792, 10940334, 11293248, 11695680, 13362240, 14116560, 14587112, 15057664, 15594240, 16034688, 16410501, 16939872, 17816320, 18233890, 18822080, 20043360, 21174840, 21880668, 22586496, 23391360, 26724480, 27350835, 28233120, 29174224, 32069376, 32821002, 33879744, 36467780, 37644160, 40086720, 42349680, 43761336, 45172992, 46782720, 53448960, 54701670, 56466240, 58348448, 65642004, 67759488, 72935560, 75288320, 80173440, 82052505, 84699360, 87522672, 109403340, 112932480, 116696896, 131284008, 135518976, 145871120, 160346880, 164105010, 169398720, 175045344, 218806680, 225864960, 233393792, 262568016, 291742240, 328210020, 338797440, 350090688, 437613360, 466787584, 525136032, 583484480, 656420040, 677594880, 700181376, 875226720, 1050272064, 1166968960, 1312840080, 1400362752, 1750453440, 2100544128, 2333937920, 2625680160, 3500906880, 4201088256, 5251360320, 7001813760, 10502720640, 21005441280]

約数ペア:

[(1, 21005441280), (2, 10502720640), (3, 7001813760), (4, 5251360320), (5, 4201088256), (6, 3500906880), (8, 2625680160), (9, 2333937920), (10, 2100544128), (12, 1750453440), (15, 1400362752), (16, 1312840080), (18, 1166968960), (20, 1050272064), (24, 875226720), (30, 700181376), (31, 677594880), (32, 656420040), (36, 583484480), (40, 525136032), (45, 466787584), (48, 437613360), (60, 350090688), (62, 338797440), (64, 328210020), (72, 291742240), (80, 262568016), (90, 233393792), (93, 225864960), (96, 218806680), (120, 175045344), (124, 169398720), (128, 164105010), (131, 160346880), (144, 145871120), (155, 135518976), (160, 131284008), (180, 116696896), (186, 112932480), (192, 109403340), (240, 87522672), (248, 84699360), (256, 82052505), (262, 80173440), (279, 75288320), (288, 72935560), (310, 67759488), (320, 65642004), (360, 58348448), (372, 56466240), (384, 54701670), (393, 53448960), (449, 46782720), (465, 45172992), (480, 43761336), (496, 42349680), (524, 40086720), (558, 37644160), (576, 36467780), (620, 33879744), (640, 32821002), (655, 32069376), (720, 29174224), (744, 28233120), (768, 27350835), (786, 26724480), (898, 23391360), (930, 22586496), (960, 21880668), (992, 21174840), (1048, 20043360), (1116, 18822080), (1152, 18233890), (1179, 17816320), (1240, 16939872), (1280, 16410501), (1310, 16034688), (1347, 15594240), (1395, 15057664), (1440, 14587112), (1488, 14116560), (1572, 13362240), (1796, 11695680), (1860, 11293248), (1920, 10940334), (1965, 10689792), (1984, 10587420), (2096, 10021680), (2232, 9411040), (2245, 9356544), (2304, 9116945), (2358, 8908160), (2480, 8469936), (2620, 8017344), (2694, 7797120), (2790, 7528832), (2880, 7293556), (2976, 7058280), (3144, 6681120), (3592, 5847840), (3720, 5646624), (3840, 5470167), (3930, 5344896), (3968, 5293710), (4041, 5198080), (4061, 5172480), (4192, 5010840), (4464, 4705520), (4490, 4678272), (4716, 4454080), (4960, 4234968), (5240, 4008672), (5388, 3898560), (5580, 3764416), (5760, 3646778), (5895, 3563264), (5952, 3529140), (6288, 3340560), (6735, 3118848), (7184, 2923920), (7440, 2823312), (7860, 2672448), (7936, 2646855), (8082, 2599040), (8122, 2586240), (8384, 2505420), (8928, 2352760), (8980, 2339136), (9432, 2227040), (9920, 2117484), (10480, 2004336), (10776, 1949280), (11160, 1882208), (11520, 1823389), (11790, 1781632), (11904, 1764570), (12183, 1724160), (12576, 1670280), (13470, 1559424), (13919, 1509120), (14368, 1461960), (14880, 1411656), (15720, 1336224), (16164, 1299520), (16244, 1293120), (16768, 1252710), (17856, 1176380), (17960, 1169568), (18864, 1113520), (19840, 1058742), (20205, 1039616), (20305, 1034496), (20960, 1002168), (21552, 974640), (22320, 941104), (23580, 890816), (23808, 882285), (24366, 862080), (25152, 835140), (26940, 779712), (27838, 754560), (28736, 730980), (29760, 705828), (31440, 668112), (32328, 649760), (32488, 646560), (33536, 626355), (35712, 588190), (35920, 584784), (36549, 574720), (37728, 556760), (39680, 529371), (40410, 519808), (40610, 517248), (41757, 503040), (41920, 501084), (43104, 487320), (44640, 470552), (47160, 445408), (48732, 431040), (50304, 417570), (53880, 389856), (55676, 377280), (57472, 365490), (58819, 357120), (59520, 352914), (60915, 344832), (62880, 334056), (64656, 324880), (64976, 323280), (69595, 301824), (71424, 294095), (71840, 292392), (73098, 287360), (75456, 278380), (80820, 259904), (81220, 258624), (83514, 251520), (83840, 250542), (86208, 243660), (89280, 235276), (94320, 222704), (97464, 215520), (100608, 208785), (107760, 194928), (111352, 188640), (114944, 182745), (117638, 178560), (119040, 176457), (121830, 172416), (125271, 167680), (125760, 167028), (129312, 162440), (129952, 161640), (139190, 150912), (143680, 146196)]