19905620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142183}}^1$

素因数の和:142199

約数の個数: 24

約数和(自身を含む): 47773824

約数和(自身を除く): 27868204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142183, 284366, 568732, 710915, 995281, 1421830, 1990562, 2843660, 3981124, 4976405, 9952810, 19905620]

約数ペア:

[(1, 19905620), (2, 9952810), (4, 4976405), (5, 3981124), (7, 2843660), (10, 1990562), (14, 1421830), (20, 995281), (28, 710915), (35, 568732), (70, 284366), (140, 142183)]