19980340

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1163}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 42043680

約数和(自身を除く): 22063340

約数列:

[1, 2, 4, 5, 10, 20, 859, 1163, 1718, 2326, 3436, 4295, 4652, 5815, 8590, 11630, 17180, 23260, 999017, 1998034, 3996068, 4995085, 9990170, 19980340]

約数ペア:

[(1, 19980340), (2, 9990170), (4, 4995085), (5, 3996068), (10, 1998034), (20, 999017), (859, 23260), (1163, 17180), (1718, 11630), (2326, 8590), (3436, 5815), (4295, 4652)]