28295260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{202109}}^1$

素因数の和:202125

約数の個数: 24

約数和(自身を含む): 67908960

約数和(自身を除く): 39613700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 202109, 404218, 808436, 1010545, 1414763, 2021090, 2829526, 4042180, 5659052, 7073815, 14147630, 28295260]

約数ペア:

[(1, 28295260), (2, 14147630), (4, 7073815), (5, 5659052), (7, 4042180), (10, 2829526), (14, 2021090), (20, 1414763), (28, 1010545), (35, 808436), (70, 404218), (140, 202109)]