19062020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10709}}^1$

素因数の和:10807

約数の個数: 24

約数和(自身を含む): 40483800

約数和(自身を除く): 21421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10709, 21418, 42836, 53545, 107090, 214180, 953101, 1906202, 3812404, 4765505, 9531010, 19062020]

約数ペア:

[(1, 19062020), (2, 9531010), (4, 4765505), (5, 3812404), (10, 1906202), (20, 953101), (89, 214180), (178, 107090), (356, 53545), (445, 42836), (890, 21418), (1780, 10709)]