19960220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142573}}^1$

素因数の和:142589

約数の個数: 24

約数和(自身を含む): 47904864

約数和(自身を除く): 27944644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142573, 285146, 570292, 712865, 998011, 1425730, 1996022, 2851460, 3992044, 4990055, 9980110, 19960220]

約数ペア:

[(1, 19960220), (2, 9980110), (4, 4990055), (5, 3992044), (7, 2851460), (10, 1996022), (14, 1425730), (20, 998011), (28, 712865), (35, 570292), (70, 285146), (140, 142573)]