665279680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{443}}^1$

素因数の和:511

約数の個数: 168

約数和(自身を含む): 1804641552

約数和(自身を除く): 1139361872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 320, 361, 380, 416, 443, 494, 520, 608, 722, 760, 832, 886, 988, 1040, 1216, 1235, 1444, 1520, 1772, 1805, 1976, 2080, 2215, 2470, 2888, 3040, 3544, 3610, 3952, 4160, 4430, 4693, 4940, 5759, 5776, 6080, 7088, 7220, 7904, 8417, 8860, 9386, 9880, 11518, 11552, 14176, 14440, 15808, 16834, 17720, 18772, 19760, 23036, 23104, 23465, 28352, 28795, 28880, 33668, 35440, 37544, 39520, 42085, 46072, 46930, 57590, 57760, 67336, 70880, 75088, 79040, 84170, 92144, 93860, 109421, 115180, 115520, 134672, 141760, 150176, 159923, 168340, 184288, 187720, 218842, 230360, 269344, 300352, 319846, 336680, 368576, 375440, 437684, 460720, 538688, 547105, 639692, 673360, 750880, 799615, 875368, 921440, 1094210, 1279384, 1346720, 1501760, 1599230, 1750736, 1842880, 2078999, 2188420, 2558768, 2693440, 3198460, 3501472, 4157998, 4376840, 5117536, 6396920, 7002944, 8315996, 8753680, 10235072, 10394995, 12793840, 16631992, 17507360, 20789990, 25587680, 33263984, 35014720, 41579980, 51175360, 66527968, 83159960, 133055936, 166319920, 332639840, 665279680]

約数ペア:

[(1, 665279680), (2, 332639840), (4, 166319920), (5, 133055936), (8, 83159960), (10, 66527968), (13, 51175360), (16, 41579980), (19, 35014720), (20, 33263984), (26, 25587680), (32, 20789990), (38, 17507360), (40, 16631992), (52, 12793840), (64, 10394995), (65, 10235072), (76, 8753680), (80, 8315996), (95, 7002944), (104, 6396920), (130, 5117536), (152, 4376840), (160, 4157998), (190, 3501472), (208, 3198460), (247, 2693440), (260, 2558768), (304, 2188420), (320, 2078999), (361, 1842880), (380, 1750736), (416, 1599230), (443, 1501760), (494, 1346720), (520, 1279384), (608, 1094210), (722, 921440), (760, 875368), (832, 799615), (886, 750880), (988, 673360), (1040, 639692), (1216, 547105), (1235, 538688), (1444, 460720), (1520, 437684), (1772, 375440), (1805, 368576), (1976, 336680), (2080, 319846), (2215, 300352), (2470, 269344), (2888, 230360), (3040, 218842), (3544, 187720), (3610, 184288), (3952, 168340), (4160, 159923), (4430, 150176), (4693, 141760), (4940, 134672), (5759, 115520), (5776, 115180), (6080, 109421), (7088, 93860), (7220, 92144), (7904, 84170), (8417, 79040), (8860, 75088), (9386, 70880), (9880, 67336), (11518, 57760), (11552, 57590), (14176, 46930), (14440, 46072), (15808, 42085), (16834, 39520), (17720, 37544), (18772, 35440), (19760, 33668), (23036, 28880), (23104, 28795), (23465, 28352)]