16888880

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1973}}^1$

素因数の和:2093

約数の個数: 40

約数和(自身を含む): 39653712

約数和(自身を除く): 22764832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 1973, 2140, 3946, 4280, 7892, 8560, 9865, 15784, 19730, 31568, 39460, 78920, 157840, 211111, 422222, 844444, 1055555, 1688888, 2111110, 3377776, 4222220, 8444440, 16888880]

約数ペア:

[(1, 16888880), (2, 8444440), (4, 4222220), (5, 3377776), (8, 2111110), (10, 1688888), (16, 1055555), (20, 844444), (40, 422222), (80, 211111), (107, 157840), (214, 78920), (428, 39460), (535, 31568), (856, 19730), (1070, 15784), (1712, 9865), (1973, 8560), (2140, 7892), (3946, 4280)]