127952020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{913943}}^1$

素因数の和:913959

約数の個数: 24

約数和(自身を含む): 307085184

約数和(自身を除く): 179133164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 913943, 1827886, 3655772, 4569715, 6397601, 9139430, 12795202, 18278860, 25590404, 31988005, 63976010, 127952020]

約数ペア:

[(1, 127952020), (2, 63976010), (4, 31988005), (5, 25590404), (7, 18278860), (10, 12795202), (14, 9139430), (20, 6397601), (28, 4569715), (35, 3655772), (70, 1827886), (140, 913943)]