1989990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{22111}}^1$

素因数の和:22124

約数の個数: 24

約数和(自身を含む): 5174208

約数和(自身を除く): 3184218

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 22111, 44222, 66333, 110555, 132666, 198999, 221110, 331665, 397998, 663330, 994995, 1989990]

約数ペア:

[(1, 1989990), (2, 994995), (3, 663330), (5, 397998), (6, 331665), (9, 221110), (10, 198999), (15, 132666), (18, 110555), (30, 66333), (45, 44222), (90, 22111)]