418700660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2990719}}^1$

素因数の和:2990735

約数の個数: 24

約数和(自身を含む): 1004881920

約数和(自身を除く): 586181260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2990719, 5981438, 11962876, 14953595, 20935033, 29907190, 41870066, 59814380, 83740132, 104675165, 209350330, 418700660]

約数ペア:

[(1, 418700660), (2, 209350330), (4, 104675165), (5, 83740132), (7, 59814380), (10, 41870066), (14, 29907190), (20, 20935033), (28, 14953595), (35, 11962876), (70, 5981438), (140, 2990719)]