2871260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20509}}^1$

素因数の和:20525

約数の個数: 24

約数和(自身を含む): 6891360

約数和(自身を除く): 4020100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20509, 41018, 82036, 102545, 143563, 205090, 287126, 410180, 574252, 717815, 1435630, 2871260]

約数ペア:

[(1, 2871260), (2, 1435630), (4, 717815), (5, 574252), (7, 410180), (10, 287126), (14, 205090), (20, 143563), (28, 102545), (35, 82036), (70, 41018), (140, 20509)]