6991660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26891}}^1$

素因数の和:26913

約数の個数: 24

約数和(自身を含む): 15812496

約数和(自身を除く): 8820836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 26891, 53782, 107564, 134455, 268910, 349583, 537820, 699166, 1398332, 1747915, 3495830, 6991660]

約数ペア:

[(1, 6991660), (2, 3495830), (4, 1747915), (5, 1398332), (10, 699166), (13, 537820), (20, 349583), (26, 268910), (52, 134455), (65, 107564), (130, 53782), (260, 26891)]