28123078

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{3719}}^1$

素因数の和:3939

約数の個数: 16

約数和(自身を含む): 44640000

約数和(自身を除く): 16516922

約数列:

[1, 2, 19, 38, 199, 398, 3719, 3781, 7438, 7562, 70661, 141322, 740081, 1480162, 14061539, 28123078]

約数ペア:

[(1, 28123078), (2, 14061539), (19, 1480162), (38, 740081), (199, 141322), (398, 70661), (3719, 7562), (3781, 7438)]