12867820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 31207680

約数和(自身を除く): 18339860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 859, 1070, 1498, 1718, 2140, 2996, 3436, 3745, 4295, 6013, 7490, 8590, 12026, 14980, 17180, 24052, 30065, 60130, 91913, 120260, 183826, 367652, 459565, 643391, 919130, 1286782, 1838260, 2573564, 3216955, 6433910, 12867820]

約数ペア:

[(1, 12867820), (2, 6433910), (4, 3216955), (5, 2573564), (7, 1838260), (10, 1286782), (14, 919130), (20, 643391), (28, 459565), (35, 367652), (70, 183826), (107, 120260), (140, 91913), (214, 60130), (428, 30065), (535, 24052), (749, 17180), (859, 14980), (1070, 12026), (1498, 8590), (1718, 7490), (2140, 6013), (2996, 4295), (3436, 3745)]