1285452020

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{43223}}^1$

素因数の和:44719

約数の個数: 24

約数和(自身を含む): 2701327104

約数和(自身を除く): 1415875084

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 7435, 14870, 29740, 43223, 86446, 172892, 216115, 432230, 864460, 64272601, 128545202, 257090404, 321363005, 642726010, 1285452020]

約数ペア:

[(1, 1285452020), (2, 642726010), (4, 321363005), (5, 257090404), (10, 128545202), (20, 64272601), (1487, 864460), (2974, 432230), (5948, 216115), (7435, 172892), (14870, 86446), (29740, 43223)]