27641680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 71031168

約数和(自身を除く): 43389488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 202, 220, 311, 404, 440, 505, 622, 808, 880, 1010, 1111, 1244, 1555, 1616, 2020, 2222, 2488, 3110, 3421, 4040, 4444, 4976, 5555, 6220, 6842, 8080, 8888, 11110, 12440, 13684, 17105, 17776, 22220, 24880, 27368, 31411, 34210, 44440, 54736, 62822, 68420, 88880, 125644, 136840, 157055, 251288, 273680, 314110, 345521, 502576, 628220, 691042, 1256440, 1382084, 1727605, 2512880, 2764168, 3455210, 5528336, 6910420, 13820840, 27641680]

約数ペア:

[(1, 27641680), (2, 13820840), (4, 6910420), (5, 5528336), (8, 3455210), (10, 2764168), (11, 2512880), (16, 1727605), (20, 1382084), (22, 1256440), (40, 691042), (44, 628220), (55, 502576), (80, 345521), (88, 314110), (101, 273680), (110, 251288), (176, 157055), (202, 136840), (220, 125644), (311, 88880), (404, 68420), (440, 62822), (505, 54736), (622, 44440), (808, 34210), (880, 31411), (1010, 27368), (1111, 24880), (1244, 22220), (1555, 17776), (1616, 17105), (2020, 13684), (2222, 12440), (2488, 11110), (3110, 8888), (3421, 8080), (4040, 6842), (4444, 6220), (4976, 5555)]