12857260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49451}}^1$

素因数の和:49473

約数の個数: 24

約数和(自身を含む): 29077776

約数和(自身を除く): 16220516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49451, 98902, 197804, 247255, 494510, 642863, 989020, 1285726, 2571452, 3214315, 6428630, 12857260]

約数ペア:

[(1, 12857260), (2, 6428630), (4, 3214315), (5, 2571452), (10, 1285726), (13, 989020), (20, 642863), (26, 494510), (52, 247255), (65, 197804), (130, 98902), (260, 49451)]