278327086

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{20749}}^1$

素因数の和:21123

約数の個数: 16

約数和(自身を含む): 440730000

約数和(自身を除く): 162402914

約数列:

[1, 2, 19, 38, 353, 706, 6707, 13414, 20749, 41498, 394231, 788462, 7324397, 14648794, 139163543, 278327086]

約数ペア:

[(1, 278327086), (2, 139163543), (19, 14648794), (38, 7324397), (353, 788462), (706, 394231), (6707, 41498), (13414, 20749)]