20909140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149351}}^1$

素因数の和:149367

約数の個数: 24

約数和(自身を含む): 50182272

約数和(自身を除く): 29273132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149351, 298702, 597404, 746755, 1045457, 1493510, 2090914, 2987020, 4181828, 5227285, 10454570, 20909140]

約数ペア:

[(1, 20909140), (2, 10454570), (4, 5227285), (5, 4181828), (7, 2987020), (10, 2090914), (14, 1493510), (20, 1045457), (28, 746755), (35, 597404), (70, 298702), (140, 149351)]