1278092800

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3221}}^1$

素因数の和:3280

約数の個数: 120

約数和(自身を含む): 3269737152

約数和(自身を除く): 1991644352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 992, 1240, 1280, 1550, 1600, 1984, 2480, 2560, 3100, 3200, 3221, 3968, 4960, 6200, 6400, 6442, 7936, 9920, 12400, 12800, 12884, 15872, 16105, 19840, 24800, 25768, 32210, 39680, 49600, 51536, 64420, 79360, 80525, 99200, 99851, 103072, 128840, 161050, 198400, 199702, 206144, 257680, 322100, 396800, 399404, 412288, 499255, 515360, 644200, 798808, 824576, 998510, 1030720, 1288400, 1597616, 1649152, 1997020, 2061440, 2496275, 2576800, 3195232, 3994040, 4122880, 4992550, 5153600, 6390464, 7988080, 8245760, 9985100, 10307200, 12780928, 15976160, 19970200, 20614400, 25561856, 31952320, 39940400, 41228800, 51123712, 63904640, 79880800, 127809280, 159761600, 255618560, 319523200, 639046400, 1278092800]

約数ペア:

[(1, 1278092800), (2, 639046400), (4, 319523200), (5, 255618560), (8, 159761600), (10, 127809280), (16, 79880800), (20, 63904640), (25, 51123712), (31, 41228800), (32, 39940400), (40, 31952320), (50, 25561856), (62, 20614400), (64, 19970200), (80, 15976160), (100, 12780928), (124, 10307200), (128, 9985100), (155, 8245760), (160, 7988080), (200, 6390464), (248, 5153600), (256, 4992550), (310, 4122880), (320, 3994040), (400, 3195232), (496, 2576800), (512, 2496275), (620, 2061440), (640, 1997020), (775, 1649152), (800, 1597616), (992, 1288400), (1240, 1030720), (1280, 998510), (1550, 824576), (1600, 798808), (1984, 644200), (2480, 515360), (2560, 499255), (3100, 412288), (3200, 399404), (3221, 396800), (3968, 322100), (4960, 257680), (6200, 206144), (6400, 199702), (6442, 198400), (7936, 161050), (9920, 128840), (12400, 103072), (12800, 99851), (12884, 99200), (15872, 80525), (16105, 79360), (19840, 64420), (24800, 51536), (25768, 49600), (32210, 39680)]