12728620

素因数分解:

$2^2\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1103}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 26800704

約数和(自身を除く): 14072084

約数列:

[1, 2, 4, 5, 10, 20, 577, 1103, 1154, 2206, 2308, 2885, 4412, 5515, 5770, 11030, 11540, 22060, 636431, 1272862, 2545724, 3182155, 6364310, 12728620]

約数ペア:

[(1, 12728620), (2, 6364310), (4, 3182155), (5, 2545724), (10, 1272862), (20, 636431), (577, 22060), (1103, 11540), (1154, 11030), (2206, 5770), (2308, 5515), (2885, 4412)]