15919790

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{6661}}^1$

素因数の和:6907

約数の個数: 16

約数和(自身を含む): 28779840

約数和(自身を除く): 12860050

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 6661, 13322, 33305, 66610, 1591979, 3183958, 7959895, 15919790]

約数ペア:

[(1, 15919790), (2, 7959895), (5, 3183958), (10, 1591979), (239, 66610), (478, 33305), (1195, 13322), (2390, 6661)]