15528880

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:901

約数の個数: 40

約数和(自身を含む): 36270000

約数和(自身を除く): 20741120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 499, 778, 998, 1556, 1945, 1996, 2495, 3112, 3890, 3992, 4990, 6224, 7780, 7984, 9980, 15560, 19960, 31120, 39920, 194111, 388222, 776444, 970555, 1552888, 1941110, 3105776, 3882220, 7764440, 15528880]

約数ペア:

[(1, 15528880), (2, 7764440), (4, 3882220), (5, 3105776), (8, 1941110), (10, 1552888), (16, 970555), (20, 776444), (40, 388222), (80, 194111), (389, 39920), (499, 31120), (778, 19960), (998, 15560), (1556, 9980), (1945, 7984), (1996, 7780), (2495, 6224), (3112, 4990), (3890, 3992)]