12520880

素因数分解:

$2^4\times 5^1\times {\mathrm{156511}}^1$

素因数の和:156524

約数の個数: 20

約数和(自身を含む): 29111232

約数和(自身を除く): 16590352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156511, 313022, 626044, 782555, 1252088, 1565110, 2504176, 3130220, 6260440, 12520880]

約数ペア:

[(1, 12520880), (2, 6260440), (4, 3130220), (5, 2504176), (8, 1565110), (10, 1252088), (16, 782555), (20, 626044), (40, 313022), (80, 156511)]