8121620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31237}}^1$

素因数の和:31259

約数の個数: 24

約数和(自身を含む): 18367944

約数和(自身を除く): 10246324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31237, 62474, 124948, 156185, 312370, 406081, 624740, 812162, 1624324, 2030405, 4060810, 8121620]

約数ペア:

[(1, 8121620), (2, 4060810), (4, 2030405), (5, 1624324), (10, 812162), (13, 624740), (20, 406081), (26, 312370), (52, 156185), (65, 124948), (130, 62474), (260, 31237)]