3917020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1557

約数の個数: 24

約数和(自身を含む): 8290800

約数和(自身を除く): 4373780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 1409, 2780, 2818, 5636, 7045, 14090, 28180, 195851, 391702, 783404, 979255, 1958510, 3917020]

約数ペア:

[(1, 3917020), (2, 1958510), (4, 979255), (5, 783404), (10, 391702), (20, 195851), (139, 28180), (278, 14090), (556, 7045), (695, 5636), (1390, 2818), (1409, 2780)]