81278072

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{247799}}^1$

素因数の和:247846

約数の個数: 16

約数和(自身を含む): 156114000

約数和(自身を除く): 74835928

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 247799, 495598, 991196, 1982392, 10159759, 20319518, 40639036, 81278072]

約数ペア:

[(1, 81278072), (2, 40639036), (4, 20319518), (8, 10159759), (41, 1982392), (82, 991196), (164, 495598), (328, 247799)]