20885510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72019}}^1$

素因数の和:72055

約数の個数: 16

約数和(自身を含む): 38890800

約数和(自身を除く): 18005290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72019, 144038, 360095, 720190, 2088551, 4177102, 10442755, 20885510]

約数ペア:

[(1, 20885510), (2, 10442755), (5, 4177102), (10, 2088551), (29, 720190), (58, 360095), (145, 144038), (290, 72019)]