12339440

素因数分解:

$2^4\times 5^1\times {\mathrm{154243}}^1$

素因数の和:154256

約数の個数: 20

約数和(自身を含む): 28689384

約数和(自身を除く): 16349944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 154243, 308486, 616972, 771215, 1233944, 1542430, 2467888, 3084860, 6169720, 12339440]

約数ペア:

[(1, 12339440), (2, 6169720), (4, 3084860), (5, 2467888), (8, 1542430), (10, 1233944), (16, 771215), (20, 616972), (40, 308486), (80, 154243)]