542620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2087}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 1227744

約数和(自身を除く): 685124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2087, 4174, 8348, 10435, 20870, 27131, 41740, 54262, 108524, 135655, 271310, 542620]

約数ペア:

[(1, 542620), (2, 271310), (4, 135655), (5, 108524), (10, 54262), (13, 41740), (20, 27131), (26, 20870), (52, 10435), (65, 8348), (130, 4174), (260, 2087)]