12656980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90407}}^1$

素因数の和:90423

約数の個数: 24

約数和(自身を含む): 30377088

約数和(自身を除く): 17720108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90407, 180814, 361628, 452035, 632849, 904070, 1265698, 1808140, 2531396, 3164245, 6328490, 12656980]

約数ペア:

[(1, 12656980), (2, 6328490), (4, 3164245), (5, 2531396), (7, 1808140), (10, 1265698), (14, 904070), (20, 632849), (28, 452035), (35, 361628), (70, 180814), (140, 90407)]