18520180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{132287}}^1$

素因数の和:132303

約数の個数: 24

約数和(自身を含む): 44448768

約数和(自身を除く): 25928588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 132287, 264574, 529148, 661435, 926009, 1322870, 1852018, 2645740, 3704036, 4630045, 9260090, 18520180]

約数ペア:

[(1, 18520180), (2, 9260090), (4, 4630045), (5, 3704036), (7, 2645740), (10, 1852018), (14, 1322870), (20, 926009), (28, 661435), (35, 529148), (70, 264574), (140, 132287)]