887540

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 1881600

約数和(自身を除く): 994060

約数列:

[1, 2, 4, 5, 10, 20, 199, 223, 398, 446, 796, 892, 995, 1115, 1990, 2230, 3980, 4460, 44377, 88754, 177508, 221885, 443770, 887540]

約数ペア:

[(1, 887540), (2, 443770), (4, 221885), (5, 177508), (10, 88754), (20, 44377), (199, 4460), (223, 3980), (398, 2230), (446, 1990), (796, 1115), (892, 995)]