221345710

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{111229}}^1$

素因数の和:111435

約数の個数: 16

約数和(自身を含む): 400428000

約数和(自身を除く): 179082290

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 111229, 222458, 556145, 1112290, 22134571, 44269142, 110672855, 221345710]

約数ペア:

[(1, 221345710), (2, 110672855), (5, 44269142), (10, 22134571), (199, 1112290), (398, 556145), (995, 222458), (1990, 111229)]