255618560

素因数分解:

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

素因数の和:3275

約数の個数: 80

約数和(自身を含む): 632852352

約数和(自身を除く): 377233792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3221, 3968, 4960, 6442, 7936, 9920, 12884, 15872, 16105, 19840, 25768, 32210, 39680, 51536, 64420, 79360, 99851, 103072, 128840, 199702, 206144, 257680, 399404, 412288, 499255, 515360, 798808, 824576, 998510, 1030720, 1597616, 1649152, 1997020, 2061440, 3195232, 3994040, 4122880, 6390464, 7988080, 8245760, 12780928, 15976160, 25561856, 31952320, 51123712, 63904640, 127809280, 255618560]

約数ペア:

[(1, 255618560), (2, 127809280), (4, 63904640), (5, 51123712), (8, 31952320), (10, 25561856), (16, 15976160), (20, 12780928), (31, 8245760), (32, 7988080), (40, 6390464), (62, 4122880), (64, 3994040), (80, 3195232), (124, 2061440), (128, 1997020), (155, 1649152), (160, 1597616), (248, 1030720), (256, 998510), (310, 824576), (320, 798808), (496, 515360), (512, 499255), (620, 412288), (640, 399404), (992, 257680), (1240, 206144), (1280, 199702), (1984, 128840), (2480, 103072), (2560, 99851), (3221, 79360), (3968, 64420), (4960, 51536), (6442, 39680), (7936, 32210), (9920, 25768), (12884, 19840), (15872, 16105)]