81740165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73973}}^1$

素因数の和:74008

約数の個数: 16

約数和(自身を含む): 111848688

約数和(自身を除く): 30108523

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 73973, 369865, 961649, 1257541, 4808245, 6287705, 16348033, 81740165]

約数ペア:

[(1, 81740165), (5, 16348033), (13, 6287705), (17, 4808245), (65, 1257541), (85, 961649), (221, 369865), (1105, 73973)]