78747268

素因数分解:

$2^2\times {\mathrm{109}}^2\times {\mathrm{1657}}^1$

素因数の和:1879

約数の個数: 18

約数和(自身を含む): 139167546

約数和(自身を除く): 60420278

約数列:

[1, 2, 4, 109, 218, 436, 1657, 3314, 6628, 11881, 23762, 47524, 180613, 361226, 722452, 19686817, 39373634, 78747268]

約数ペア:

[(1, 78747268), (2, 39373634), (4, 19686817), (109, 722452), (218, 361226), (436, 180613), (1657, 47524), (3314, 23762), (6628, 11881)]