17960180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128287}}^1$

素因数の和:128303

約数の個数: 24

約数和(自身を含む): 43104768

約数和(自身を除く): 25144588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128287, 256574, 513148, 641435, 898009, 1282870, 1796018, 2565740, 3592036, 4490045, 8980090, 17960180]

約数ペア:

[(1, 17960180), (2, 8980090), (4, 4490045), (5, 3592036), (7, 2565740), (10, 1796018), (14, 1282870), (20, 898009), (28, 641435), (35, 513148), (70, 256574), (140, 128287)]