863484920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{198047}}^1$

素因数の和:198167

約数の個数: 32

約数和(自身を含む): 1960675200

約数和(自身を除く): 1097190280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 198047, 396094, 792188, 990235, 1584376, 1980470, 3960940, 7921880, 21587123, 43174246, 86348492, 107935615, 172696984, 215871230, 431742460, 863484920]

約数ペア:

[(1, 863484920), (2, 431742460), (4, 215871230), (5, 172696984), (8, 107935615), (10, 86348492), (20, 43174246), (40, 21587123), (109, 7921880), (218, 3960940), (436, 1980470), (545, 1584376), (872, 990235), (1090, 792188), (2180, 396094), (4360, 198047)]