12811820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{91513}}^1$

素因数の和:91529

約数の個数: 24

約数和(自身を含む): 30748704

約数和(自身を除く): 17936884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 91513, 183026, 366052, 457565, 640591, 915130, 1281182, 1830260, 2562364, 3202955, 6405910, 12811820]

約数ペア:

[(1, 12811820), (2, 6405910), (4, 3202955), (5, 2562364), (7, 1830260), (10, 1281182), (14, 915130), (20, 640591), (28, 457565), (35, 366052), (70, 183026), (140, 91513)]