218260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1559}}^1$

素因数の和:1575

約数の個数: 24

約数和(自身を含む): 524160

約数和(自身を除く): 305900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1559, 3118, 6236, 7795, 10913, 15590, 21826, 31180, 43652, 54565, 109130, 218260]

約数ペア:

[(1, 218260), (2, 109130), (4, 54565), (5, 43652), (7, 31180), (10, 21826), (14, 15590), (20, 10913), (28, 7795), (35, 6236), (70, 3118), (140, 1559)]