71272180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509087}}^1$

素因数の和:509103

約数の個数: 24

約数和(自身を含む): 171053568

約数和(自身を除く): 99781388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509087, 1018174, 2036348, 2545435, 3563609, 5090870, 7127218, 10181740, 14254436, 17818045, 35636090, 71272180]

約数ペア:

[(1, 71272180), (2, 35636090), (4, 17818045), (5, 14254436), (7, 10181740), (10, 7127218), (14, 5090870), (20, 3563609), (28, 2545435), (35, 2036348), (70, 1018174), (140, 509087)]