311987520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:690

約数の個数: 252

約数和(自身を含む): 1163816316

約数和(自身を除く): 851828796

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 169, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 338, 360, 390, 416, 468, 480, 507, 520, 576, 585, 624, 641, 676, 720, 780, 832, 845, 936, 960, 1014, 1040, 1170, 1248, 1282, 1352, 1440, 1521, 1560, 1690, 1872, 1923, 2028, 2080, 2340, 2496, 2535, 2564, 2704, 2880, 3042, 3120, 3205, 3380, 3744, 3846, 4056, 4160, 4680, 5070, 5128, 5408, 5769, 6084, 6240, 6410, 6760, 7488, 7605, 7692, 8112, 8333, 9360, 9615, 10140, 10256, 10816, 11538, 12168, 12480, 12820, 13520, 15210, 15384, 16224, 16666, 18720, 19230, 20280, 20512, 23076, 24336, 24999, 25640, 27040, 28845, 30420, 30768, 32448, 33332, 37440, 38460, 40560, 41024, 41665, 46152, 48672, 49998, 51280, 54080, 57690, 60840, 61536, 66664, 74997, 76920, 81120, 83330, 92304, 97344, 99996, 102560, 108329, 115380, 121680, 123072, 124995, 133328, 149994, 153840, 162240, 166660, 184608, 199992, 205120, 216658, 230760, 243360, 249990, 266656, 299988, 307680, 324987, 333320, 369216, 374985, 399984, 433316, 461520, 486720, 499980, 533312, 541645, 599976, 615360, 649974, 666640, 749970, 799968, 866632, 923040, 974961, 999960, 1083290, 1199952, 1299948, 1333280, 1499940, 1599936, 1624935, 1733264, 1846080, 1949922, 1999920, 2166580, 2399904, 2599896, 2666560, 2999880, 3249870, 3466528, 3899844, 3999840, 4333160, 4799808, 4874805, 5199792, 5999760, 6499740, 6933056, 7799688, 7999680, 8666320, 9749610, 10399584, 11999520, 12999480, 15599376, 17332640, 19499220, 20799168, 23999040, 25998960, 31198752, 34665280, 38998440, 51997920, 62397504, 77996880, 103995840, 155993760, 311987520]

約数ペア:

[(1, 311987520), (2, 155993760), (3, 103995840), (4, 77996880), (5, 62397504), (6, 51997920), (8, 38998440), (9, 34665280), (10, 31198752), (12, 25998960), (13, 23999040), (15, 20799168), (16, 19499220), (18, 17332640), (20, 15599376), (24, 12999480), (26, 11999520), (30, 10399584), (32, 9749610), (36, 8666320), (39, 7999680), (40, 7799688), (45, 6933056), (48, 6499740), (52, 5999760), (60, 5199792), (64, 4874805), (65, 4799808), (72, 4333160), (78, 3999840), (80, 3899844), (90, 3466528), (96, 3249870), (104, 2999880), (117, 2666560), (120, 2599896), (130, 2399904), (144, 2166580), (156, 1999920), (160, 1949922), (169, 1846080), (180, 1733264), (192, 1624935), (195, 1599936), (208, 1499940), (234, 1333280), (240, 1299948), (260, 1199952), (288, 1083290), (312, 999960), (320, 974961), (338, 923040), (360, 866632), (390, 799968), (416, 749970), (468, 666640), (480, 649974), (507, 615360), (520, 599976), (576, 541645), (585, 533312), (624, 499980), (641, 486720), (676, 461520), (720, 433316), (780, 399984), (832, 374985), (845, 369216), (936, 333320), (960, 324987), (1014, 307680), (1040, 299988), (1170, 266656), (1248, 249990), (1282, 243360), (1352, 230760), (1440, 216658), (1521, 205120), (1560, 199992), (1690, 184608), (1872, 166660), (1923, 162240), (2028, 153840), (2080, 149994), (2340, 133328), (2496, 124995), (2535, 123072), (2564, 121680), (2704, 115380), (2880, 108329), (3042, 102560), (3120, 99996), (3205, 97344), (3380, 92304), (3744, 83330), (3846, 81120), (4056, 76920), (4160, 74997), (4680, 66664), (5070, 61536), (5128, 60840), (5408, 57690), (5769, 54080), (6084, 51280), (6240, 49998), (6410, 48672), (6760, 46152), (7488, 41665), (7605, 41024), (7692, 40560), (8112, 38460), (8333, 37440), (9360, 33332), (9615, 32448), (10140, 30768), (10256, 30420), (10816, 28845), (11538, 27040), (12168, 25640), (12480, 24999), (12820, 24336), (13520, 23076), (15210, 20512), (15384, 20280), (16224, 19230), (16666, 18720)]