39978260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{285559}}^1$

素因数の和:285575

約数の個数: 24

約数和(自身を含む): 95948160

約数和(自身を除く): 55969900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 285559, 571118, 1142236, 1427795, 1998913, 2855590, 3997826, 5711180, 7995652, 9994565, 19989130, 39978260]

約数ペア:

[(1, 39978260), (2, 19989130), (4, 9994565), (5, 7995652), (7, 5711180), (10, 3997826), (14, 2855590), (20, 1998913), (28, 1427795), (35, 1142236), (70, 571118), (140, 285559)]