12455920

素因数分解:

$2^4\times 5^1\times {\mathrm{155699}}^1$

素因数の和:155712

約数の個数: 20

約数和(自身を含む): 28960200

約数和(自身を除く): 16504280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 155699, 311398, 622796, 778495, 1245592, 1556990, 2491184, 3113980, 6227960, 12455920]

約数ペア:

[(1, 12455920), (2, 6227960), (4, 3113980), (5, 2491184), (8, 1556990), (10, 1245592), (16, 778495), (20, 622796), (40, 311398), (80, 155699)]