19662020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140443}}^1$

素因数の和:140459

約数の個数: 24

約数和(自身を含む): 47189184

約数和(自身を除く): 27527164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140443, 280886, 561772, 702215, 983101, 1404430, 1966202, 2808860, 3932404, 4915505, 9831010, 19662020]

約数ペア:

[(1, 19662020), (2, 9831010), (4, 4915505), (5, 3932404), (7, 2808860), (10, 1966202), (14, 1404430), (20, 983101), (28, 702215), (35, 561772), (70, 280886), (140, 140443)]