219049840

素因数分解:

$2^4\times 5^1\times {\mathrm{2738123}}^1$

素因数の和:2738136

約数の個数: 20

約数和(自身を含む): 509291064

約数和(自身を除く): 290241224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2738123, 5476246, 10952492, 13690615, 21904984, 27381230, 43809968, 54762460, 109524920, 219049840]

約数ペア:

[(1, 219049840), (2, 109524920), (4, 54762460), (5, 43809968), (8, 27381230), (10, 21904984), (16, 13690615), (20, 10952492), (40, 5476246), (80, 2738123)]