647662080

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 240

約数和(自身を含む): 2246508000

約数和(自身を除く): 1598845920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 169, 192, 195, 208, 240, 256, 260, 312, 320, 338, 384, 390, 416, 480, 499, 507, 512, 520, 624, 640, 676, 768, 780, 832, 845, 960, 998, 1014, 1040, 1248, 1280, 1352, 1497, 1536, 1560, 1664, 1690, 1920, 1996, 2028, 2080, 2495, 2496, 2535, 2560, 2704, 2994, 3120, 3328, 3380, 3840, 3992, 4056, 4160, 4990, 4992, 5070, 5408, 5988, 6240, 6487, 6656, 6760, 7485, 7680, 7984, 8112, 8320, 9980, 9984, 10140, 10816, 11976, 12480, 12974, 13520, 14970, 15968, 16224, 16640, 19461, 19960, 19968, 20280, 21632, 23952, 24960, 25948, 27040, 29940, 31936, 32435, 32448, 33280, 38922, 39920, 40560, 43264, 47904, 49920, 51896, 54080, 59880, 63872, 64870, 64896, 77844, 79840, 81120, 84331, 86528, 95808, 97305, 99840, 103792, 108160, 119760, 127744, 129740, 129792, 155688, 159680, 162240, 168662, 191616, 194610, 207584, 216320, 239520, 252993, 255488, 259480, 259584, 311376, 319360, 324480, 337324, 383232, 389220, 415168, 421655, 432640, 479040, 505986, 518960, 622752, 638720, 648960, 674648, 766464, 778440, 830336, 843310, 958080, 1011972, 1037920, 1245504, 1264965, 1277440, 1297920, 1349296, 1556880, 1660672, 1686620, 1916160, 2023944, 2075840, 2491008, 2529930, 2698592, 3113760, 3321344, 3373240, 3832320, 4047888, 4151680, 4982016, 5059860, 5397184, 6227520, 6746480, 8095776, 8303360, 9964032, 10119720, 10794368, 12455040, 13492960, 16191552, 16606720, 20239440, 21588736, 24910080, 26985920, 32383104, 40478880, 43177472, 49820160, 53971840, 64766208, 80957760, 107943680, 129532416, 161915520, 215887360, 323831040, 647662080]

約数ペア:

[(1, 647662080), (2, 323831040), (3, 215887360), (4, 161915520), (5, 129532416), (6, 107943680), (8, 80957760), (10, 64766208), (12, 53971840), (13, 49820160), (15, 43177472), (16, 40478880), (20, 32383104), (24, 26985920), (26, 24910080), (30, 21588736), (32, 20239440), (39, 16606720), (40, 16191552), (48, 13492960), (52, 12455040), (60, 10794368), (64, 10119720), (65, 9964032), (78, 8303360), (80, 8095776), (96, 6746480), (104, 6227520), (120, 5397184), (128, 5059860), (130, 4982016), (156, 4151680), (160, 4047888), (169, 3832320), (192, 3373240), (195, 3321344), (208, 3113760), (240, 2698592), (256, 2529930), (260, 2491008), (312, 2075840), (320, 2023944), (338, 1916160), (384, 1686620), (390, 1660672), (416, 1556880), (480, 1349296), (499, 1297920), (507, 1277440), (512, 1264965), (520, 1245504), (624, 1037920), (640, 1011972), (676, 958080), (768, 843310), (780, 830336), (832, 778440), (845, 766464), (960, 674648), (998, 648960), (1014, 638720), (1040, 622752), (1248, 518960), (1280, 505986), (1352, 479040), (1497, 432640), (1536, 421655), (1560, 415168), (1664, 389220), (1690, 383232), (1920, 337324), (1996, 324480), (2028, 319360), (2080, 311376), (2495, 259584), (2496, 259480), (2535, 255488), (2560, 252993), (2704, 239520), (2994, 216320), (3120, 207584), (3328, 194610), (3380, 191616), (3840, 168662), (3992, 162240), (4056, 159680), (4160, 155688), (4990, 129792), (4992, 129740), (5070, 127744), (5408, 119760), (5988, 108160), (6240, 103792), (6487, 99840), (6656, 97305), (6760, 95808), (7485, 86528), (7680, 84331), (7984, 81120), (8112, 79840), (8320, 77844), (9980, 64896), (9984, 64870), (10140, 63872), (10816, 59880), (11976, 54080), (12480, 51896), (12974, 49920), (13520, 47904), (14970, 43264), (15968, 40560), (16224, 39920), (16640, 38922), (19461, 33280), (19960, 32448), (19968, 32435), (20280, 31936), (21632, 29940), (23952, 27040), (24960, 25948)]