648571840

素因数分解:

$2^6\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:368

約数の個数: 224

約数和(自身を含む): 1901952000

約数和(自身を除く): 1253380160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 311, 320, 343, 380, 392, 448, 490, 532, 560, 608, 622, 665, 686, 760, 784, 931, 980, 1064, 1120, 1216, 1244, 1330, 1372, 1520, 1555, 1568, 1715, 1862, 1960, 2128, 2177, 2240, 2488, 2660, 2744, 3040, 3110, 3136, 3430, 3724, 3920, 4256, 4354, 4655, 4976, 5320, 5488, 5909, 6080, 6220, 6517, 6860, 7448, 7840, 8512, 8708, 9310, 9952, 10640, 10885, 10976, 11818, 12440, 13034, 13720, 14896, 15239, 15680, 17416, 18620, 19904, 21280, 21770, 21952, 23636, 24880, 26068, 27440, 29545, 29792, 30478, 32585, 34832, 37240, 41363, 42560, 43540, 47272, 49760, 52136, 54880, 59090, 59584, 60956, 65170, 69664, 74480, 76195, 82726, 87080, 94544, 99520, 104272, 106673, 109760, 118180, 121912, 130340, 139328, 148960, 152390, 165452, 174160, 189088, 206815, 208544, 213346, 236360, 243824, 260680, 289541, 297920, 304780, 330904, 348320, 378176, 413630, 417088, 426692, 472720, 487648, 521360, 533365, 579082, 609560, 661808, 696640, 827260, 853384, 945440, 975296, 1042720, 1066730, 1158164, 1219120, 1323616, 1447705, 1654520, 1706768, 1890880, 2026787, 2085440, 2133460, 2316328, 2438240, 2647232, 2895410, 3309040, 3413536, 4053574, 4266920, 4632656, 4876480, 5790820, 6618080, 6827072, 8107148, 8533840, 9265312, 10133935, 11581640, 13236160, 16214296, 17067680, 18530624, 20267870, 23163280, 32428592, 34135360, 40535740, 46326560, 64857184, 81071480, 92653120, 129714368, 162142960, 324285920, 648571840]

約数ペア:

[(1, 648571840), (2, 324285920), (4, 162142960), (5, 129714368), (7, 92653120), (8, 81071480), (10, 64857184), (14, 46326560), (16, 40535740), (19, 34135360), (20, 32428592), (28, 23163280), (32, 20267870), (35, 18530624), (38, 17067680), (40, 16214296), (49, 13236160), (56, 11581640), (64, 10133935), (70, 9265312), (76, 8533840), (80, 8107148), (95, 6827072), (98, 6618080), (112, 5790820), (133, 4876480), (140, 4632656), (152, 4266920), (160, 4053574), (190, 3413536), (196, 3309040), (224, 2895410), (245, 2647232), (266, 2438240), (280, 2316328), (304, 2133460), (311, 2085440), (320, 2026787), (343, 1890880), (380, 1706768), (392, 1654520), (448, 1447705), (490, 1323616), (532, 1219120), (560, 1158164), (608, 1066730), (622, 1042720), (665, 975296), (686, 945440), (760, 853384), (784, 827260), (931, 696640), (980, 661808), (1064, 609560), (1120, 579082), (1216, 533365), (1244, 521360), (1330, 487648), (1372, 472720), (1520, 426692), (1555, 417088), (1568, 413630), (1715, 378176), (1862, 348320), (1960, 330904), (2128, 304780), (2177, 297920), (2240, 289541), (2488, 260680), (2660, 243824), (2744, 236360), (3040, 213346), (3110, 208544), (3136, 206815), (3430, 189088), (3724, 174160), (3920, 165452), (4256, 152390), (4354, 148960), (4655, 139328), (4976, 130340), (5320, 121912), (5488, 118180), (5909, 109760), (6080, 106673), (6220, 104272), (6517, 99520), (6860, 94544), (7448, 87080), (7840, 82726), (8512, 76195), (8708, 74480), (9310, 69664), (9952, 65170), (10640, 60956), (10885, 59584), (10976, 59090), (11818, 54880), (12440, 52136), (13034, 49760), (13720, 47272), (14896, 43540), (15239, 42560), (15680, 41363), (17416, 37240), (18620, 34832), (19904, 32585), (21280, 30478), (21770, 29792), (21952, 29545), (23636, 27440), (24880, 26068)]