13931440

素因数分解:

$2^4\times 5^1\times {\mathrm{174143}}^1$

素因数の和:174156

約数の個数: 20

約数和(自身を含む): 32390784

約数和(自身を除く): 18459344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 174143, 348286, 696572, 870715, 1393144, 1741430, 2786288, 3482860, 6965720, 13931440]

約数ペア:

[(1, 13931440), (2, 6965720), (4, 3482860), (5, 2786288), (8, 1741430), (10, 1393144), (16, 870715), (20, 696572), (40, 348286), (80, 174143)]