19636820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140263}}^1$

素因数の和:140279

約数の個数: 24

約数和(自身を含む): 47128704

約数和(自身を除く): 27491884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140263, 280526, 561052, 701315, 981841, 1402630, 1963682, 2805260, 3927364, 4909205, 9818410, 19636820]

約数ペア:

[(1, 19636820), (2, 9818410), (4, 4909205), (5, 3927364), (7, 2805260), (10, 1963682), (14, 1402630), (20, 981841), (28, 701315), (35, 561052), (70, 280526), (140, 140263)]