1680672080

素因数分解:

$2^4\times 5^1\times {\mathrm{21008401}}^1$

素因数の和:21008414

約数の個数: 20

約数和(自身を含む): 3907562772

約数和(自身を除く): 2226890692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21008401, 42016802, 84033604, 105042005, 168067208, 210084010, 336134416, 420168020, 840336040, 1680672080]

約数ペア:

[(1, 1680672080), (2, 840336040), (4, 420168020), (5, 336134416), (8, 210084010), (10, 168067208), (16, 105042005), (20, 84033604), (40, 42016802), (80, 21008401)]