19993540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142811}}^1$

素因数の和:142827

約数の個数: 24

約数和(自身を含む): 47984832

約数和(自身を除く): 27991292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142811, 285622, 571244, 714055, 999677, 1428110, 1999354, 2856220, 3998708, 4998385, 9996770, 19993540]

約数ペア:

[(1, 19993540), (2, 9996770), (4, 4998385), (5, 3998708), (7, 2856220), (10, 1999354), (14, 1428110), (20, 999677), (28, 714055), (35, 571244), (70, 285622), (140, 142811)]