28225730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217121}}^1$

素因数の和:217141

約数の個数: 16

約数和(自身を含む): 54714744

約数和(自身を除く): 26489014

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217121, 434242, 1085605, 2171210, 2822573, 5645146, 14112865, 28225730]

約数ペア:

[(1, 28225730), (2, 14112865), (5, 5645146), (10, 2822573), (13, 2171210), (26, 1085605), (65, 434242), (130, 217121)]