2189440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 5728320

約数和(自身を除く): 3538880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 311, 320, 352, 440, 622, 640, 704, 880, 1244, 1408, 1555, 1760, 2488, 3110, 3421, 3520, 4976, 6220, 6842, 7040, 9952, 12440, 13684, 17105, 19904, 24880, 27368, 34210, 39808, 49760, 54736, 68420, 99520, 109472, 136840, 199040, 218944, 273680, 437888, 547360, 1094720, 2189440]

約数ペア:

[(1, 2189440), (2, 1094720), (4, 547360), (5, 437888), (8, 273680), (10, 218944), (11, 199040), (16, 136840), (20, 109472), (22, 99520), (32, 68420), (40, 54736), (44, 49760), (55, 39808), (64, 34210), (80, 27368), (88, 24880), (110, 19904), (128, 17105), (160, 13684), (176, 12440), (220, 9952), (311, 7040), (320, 6842), (352, 6220), (440, 4976), (622, 3520), (640, 3421), (704, 3110), (880, 2488), (1244, 1760), (1408, 1555)]