30864560

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1999}}^1$

素因数の和:2205

約数の個数: 40

約数和(自身を含む): 72168000

約数和(自身を除く): 41303440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 1999, 3088, 3860, 3998, 7720, 7996, 9995, 15440, 15992, 19990, 31984, 39980, 79960, 159920, 385807, 771614, 1543228, 1929035, 3086456, 3858070, 6172912, 7716140, 15432280, 30864560]

約数ペア:

[(1, 30864560), (2, 15432280), (4, 7716140), (5, 6172912), (8, 3858070), (10, 3086456), (16, 1929035), (20, 1543228), (40, 771614), (80, 385807), (193, 159920), (386, 79960), (772, 39980), (965, 31984), (1544, 19990), (1930, 15992), (1999, 15440), (3088, 9995), (3860, 7996), (3998, 7720)]