2540884

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{661}}^1$

素因数の和:727

約数の個数: 18

約数和(自身を含む): 4601562

約数和(自身を除く): 2060678

約数列:

[1, 2, 4, 31, 62, 124, 661, 961, 1322, 1922, 2644, 3844, 20491, 40982, 81964, 635221, 1270442, 2540884]

約数ペア:

[(1, 2540884), (2, 1270442), (4, 635221), (31, 81964), (62, 40982), (124, 20491), (661, 3844), (961, 2644), (1322, 1922)]