2123020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1051}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 4506768

約数和(自身を除く): 2383748

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1051, 2020, 2102, 4204, 5255, 10510, 21020, 106151, 212302, 424604, 530755, 1061510, 2123020]

約数ペア:

[(1, 2123020), (2, 1061510), (4, 530755), (5, 424604), (10, 212302), (20, 106151), (101, 21020), (202, 10510), (404, 5255), (505, 4204), (1010, 2102), (1051, 2020)]