399984000

素因数分解:

$2^7\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 256

約数和(自身を含む): 1430170560

約数和(自身を除く): 1030186560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 125, 128, 130, 150, 156, 160, 192, 195, 200, 208, 240, 250, 260, 300, 312, 320, 325, 375, 384, 390, 400, 416, 480, 500, 520, 600, 624, 640, 641, 650, 750, 780, 800, 832, 960, 975, 1000, 1040, 1200, 1248, 1282, 1300, 1500, 1560, 1600, 1625, 1664, 1920, 1923, 1950, 2000, 2080, 2400, 2496, 2564, 2600, 3000, 3120, 3200, 3205, 3250, 3846, 3900, 4000, 4160, 4800, 4875, 4992, 5128, 5200, 6000, 6240, 6410, 6500, 7692, 7800, 8000, 8320, 8333, 9600, 9615, 9750, 10256, 10400, 12000, 12480, 12820, 13000, 15384, 15600, 16000, 16025, 16666, 19230, 19500, 20512, 20800, 24000, 24960, 24999, 25640, 26000, 30768, 31200, 32050, 33332, 38460, 39000, 41024, 41600, 41665, 48000, 48075, 49998, 51280, 52000, 61536, 62400, 64100, 66664, 76920, 78000, 80125, 82048, 83330, 96150, 99996, 102560, 104000, 123072, 124800, 124995, 128200, 133328, 153840, 156000, 160250, 166660, 192300, 199992, 205120, 208000, 208325, 240375, 246144, 249990, 256400, 266656, 307680, 312000, 320500, 333320, 384600, 399984, 410240, 416650, 480750, 499980, 512800, 533312, 615360, 624000, 624975, 641000, 666640, 769200, 799968, 833300, 961500, 999960, 1025600, 1041625, 1066624, 1230720, 1249950, 1282000, 1333280, 1538400, 1599936, 1666600, 1923000, 1999920, 2051200, 2083250, 2499900, 2564000, 2666560, 3076800, 3124875, 3199872, 3333200, 3846000, 3999840, 4166500, 4999800, 5128000, 5333120, 6153600, 6249750, 6666400, 7692000, 7999680, 8333000, 9999600, 10256000, 12499500, 13332800, 15384000, 15999360, 16666000, 19999200, 24999000, 26665600, 30768000, 33332000, 39998400, 49998000, 66664000, 79996800, 99996000, 133328000, 199992000, 399984000]

約数ペア:

[(1, 399984000), (2, 199992000), (3, 133328000), (4, 99996000), (5, 79996800), (6, 66664000), (8, 49998000), (10, 39998400), (12, 33332000), (13, 30768000), (15, 26665600), (16, 24999000), (20, 19999200), (24, 16666000), (25, 15999360), (26, 15384000), (30, 13332800), (32, 12499500), (39, 10256000), (40, 9999600), (48, 8333000), (50, 7999680), (52, 7692000), (60, 6666400), (64, 6249750), (65, 6153600), (75, 5333120), (78, 5128000), (80, 4999800), (96, 4166500), (100, 3999840), (104, 3846000), (120, 3333200), (125, 3199872), (128, 3124875), (130, 3076800), (150, 2666560), (156, 2564000), (160, 2499900), (192, 2083250), (195, 2051200), (200, 1999920), (208, 1923000), (240, 1666600), (250, 1599936), (260, 1538400), (300, 1333280), (312, 1282000), (320, 1249950), (325, 1230720), (375, 1066624), (384, 1041625), (390, 1025600), (400, 999960), (416, 961500), (480, 833300), (500, 799968), (520, 769200), (600, 666640), (624, 641000), (640, 624975), (641, 624000), (650, 615360), (750, 533312), (780, 512800), (800, 499980), (832, 480750), (960, 416650), (975, 410240), (1000, 399984), (1040, 384600), (1200, 333320), (1248, 320500), (1282, 312000), (1300, 307680), (1500, 266656), (1560, 256400), (1600, 249990), (1625, 246144), (1664, 240375), (1920, 208325), (1923, 208000), (1950, 205120), (2000, 199992), (2080, 192300), (2400, 166660), (2496, 160250), (2564, 156000), (2600, 153840), (3000, 133328), (3120, 128200), (3200, 124995), (3205, 124800), (3250, 123072), (3846, 104000), (3900, 102560), (4000, 99996), (4160, 96150), (4800, 83330), (4875, 82048), (4992, 80125), (5128, 78000), (5200, 76920), (6000, 66664), (6240, 64100), (6410, 62400), (6500, 61536), (7692, 52000), (7800, 51280), (8000, 49998), (8320, 48075), (8333, 48000), (9600, 41665), (9615, 41600), (9750, 41024), (10256, 39000), (10400, 38460), (12000, 33332), (12480, 32050), (12820, 31200), (13000, 30768), (15384, 26000), (15600, 25640), (16000, 24999), (16025, 24960), (16666, 24000), (19230, 20800), (19500, 20512)]