90641740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647441}}^1$

素因数の和:647457

約数の個数: 24

約数和(自身を含む): 217540512

約数和(自身を除く): 126898772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647441, 1294882, 2589764, 3237205, 4532087, 6474410, 9064174, 12948820, 18128348, 22660435, 45320870, 90641740]

約数ペア:

[(1, 90641740), (2, 45320870), (4, 22660435), (5, 18128348), (7, 12948820), (10, 9064174), (14, 6474410), (20, 4532087), (28, 3237205), (35, 2589764), (70, 1294882), (140, 647441)]