12780928000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{31}}^1\times {\mathrm{3221}}^1$

素因数の和:3287

約数の個数: 176

約数和(自身を含む): 32924406528

約数和(自身を除く): 20143478528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 400, 496, 500, 512, 620, 640, 775, 800, 992, 1000, 1024, 1240, 1280, 1550, 1600, 1984, 2000, 2480, 2560, 3100, 3200, 3221, 3875, 3968, 4000, 4960, 5120, 6200, 6400, 6442, 7750, 7936, 8000, 9920, 12400, 12800, 12884, 15500, 15872, 16000, 16105, 19840, 24800, 25600, 25768, 31000, 31744, 32000, 32210, 39680, 49600, 51536, 62000, 64000, 64420, 79360, 80525, 99200, 99851, 103072, 124000, 128000, 128840, 158720, 161050, 198400, 199702, 206144, 248000, 257680, 322100, 396800, 399404, 402625, 412288, 496000, 499255, 515360, 644200, 793600, 798808, 805250, 824576, 992000, 998510, 1030720, 1288400, 1597616, 1610500, 1649152, 1984000, 1997020, 2061440, 2496275, 2576800, 3195232, 3221000, 3298304, 3968000, 3994040, 4122880, 4992550, 5153600, 6390464, 6442000, 7988080, 8245760, 9985100, 10307200, 12481375, 12780928, 12884000, 15976160, 16491520, 19970200, 20614400, 24962750, 25561856, 25768000, 31952320, 39940400, 41228800, 49925500, 51123712, 51536000, 63904640, 79880800, 82457600, 99851000, 102247424, 103072000, 127809280, 159761600, 199702000, 206144000, 255618560, 319523200, 399404000, 412288000, 511237120, 639046400, 798808000, 1278092800, 1597616000, 2556185600, 3195232000, 6390464000, 12780928000]

約数ペア:

[(1, 12780928000), (2, 6390464000), (4, 3195232000), (5, 2556185600), (8, 1597616000), (10, 1278092800), (16, 798808000), (20, 639046400), (25, 511237120), (31, 412288000), (32, 399404000), (40, 319523200), (50, 255618560), (62, 206144000), (64, 199702000), (80, 159761600), (100, 127809280), (124, 103072000), (125, 102247424), (128, 99851000), (155, 82457600), (160, 79880800), (200, 63904640), (248, 51536000), (250, 51123712), (256, 49925500), (310, 41228800), (320, 39940400), (400, 31952320), (496, 25768000), (500, 25561856), (512, 24962750), (620, 20614400), (640, 19970200), (775, 16491520), (800, 15976160), (992, 12884000), (1000, 12780928), (1024, 12481375), (1240, 10307200), (1280, 9985100), (1550, 8245760), (1600, 7988080), (1984, 6442000), (2000, 6390464), (2480, 5153600), (2560, 4992550), (3100, 4122880), (3200, 3994040), (3221, 3968000), (3875, 3298304), (3968, 3221000), (4000, 3195232), (4960, 2576800), (5120, 2496275), (6200, 2061440), (6400, 1997020), (6442, 1984000), (7750, 1649152), (7936, 1610500), (8000, 1597616), (9920, 1288400), (12400, 1030720), (12800, 998510), (12884, 992000), (15500, 824576), (15872, 805250), (16000, 798808), (16105, 793600), (19840, 644200), (24800, 515360), (25600, 499255), (25768, 496000), (31000, 412288), (31744, 402625), (32000, 399404), (32210, 396800), (39680, 322100), (49600, 257680), (51536, 248000), (62000, 206144), (64000, 199702), (64420, 198400), (79360, 161050), (80525, 158720), (99200, 128840), (99851, 128000), (103072, 124000)]