1971020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 4174800

約数和(自身を除く): 2203780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 709, 1390, 1418, 2780, 2836, 3545, 7090, 14180, 98551, 197102, 394204, 492755, 985510, 1971020]

約数ペア:

[(1, 1971020), (2, 985510), (4, 492755), (5, 394204), (10, 197102), (20, 98551), (139, 14180), (278, 7090), (556, 3545), (695, 2836), (709, 2780), (1390, 1418)]