12566420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6221}}^1$

素因数の和:6331

約数の個数: 24

約数和(自身を含む): 26655048

約数和(自身を除く): 14088628

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6221, 12442, 24884, 31105, 62210, 124420, 628321, 1256642, 2513284, 3141605, 6283210, 12566420]

約数ペア:

[(1, 12566420), (2, 6283210), (4, 3141605), (5, 2513284), (10, 1256642), (20, 628321), (101, 124420), (202, 62210), (404, 31105), (505, 24884), (1010, 12442), (2020, 6221)]