28326740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108949}}^1$

素因数の和:108971

約数の個数: 24

約数和(自身を含む): 64062600

約数和(自身を除く): 35735860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108949, 217898, 435796, 544745, 1089490, 1416337, 2178980, 2832674, 5665348, 7081685, 14163370, 28326740]

約数ペア:

[(1, 28326740), (2, 14163370), (4, 7081685), (5, 5665348), (10, 2832674), (13, 2178980), (20, 1416337), (26, 1089490), (52, 544745), (65, 435796), (130, 217898), (260, 108949)]