19995080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71411}}^1$

素因数の和:71429

約数の個数: 32

約数和(自身を含む): 51416640

約数和(自身を除く): 31421560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71411, 142822, 285644, 357055, 499877, 571288, 714110, 999754, 1428220, 1999508, 2499385, 2856440, 3999016, 4998770, 9997540, 19995080]

約数ペア:

[(1, 19995080), (2, 9997540), (4, 4998770), (5, 3999016), (7, 2856440), (8, 2499385), (10, 1999508), (14, 1428220), (20, 999754), (28, 714110), (35, 571288), (40, 499877), (56, 357055), (70, 285644), (140, 142822), (280, 71411)]