12860560

素因数分解:

$2^4\times 5^1\times {\mathrm{160757}}^1$

素因数の和:160770

約数の個数: 20

約数和(自身を含む): 29900988

約数和(自身を除く): 17040428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160757, 321514, 643028, 803785, 1286056, 1607570, 2572112, 3215140, 6430280, 12860560]

約数ペア:

[(1, 12860560), (2, 6430280), (4, 3215140), (5, 2572112), (8, 1607570), (10, 1286056), (16, 803785), (20, 643028), (40, 321514), (80, 160757)]