20039305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28027}}^1$

素因数の和:28056

約数の個数: 16

約数和(自身を含む): 28252224

約数和(自身を除く): 8212919

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28027, 140135, 308297, 364351, 1541485, 1821755, 4007861, 20039305]

約数ペア:

[(1, 20039305), (5, 4007861), (11, 1821755), (13, 1541485), (55, 364351), (65, 308297), (143, 140135), (715, 28027)]