80681072

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{117269}}^1$

素因数の和:117320

約数の個数: 20

約数和(自身を含む): 159956280

約数和(自身を除く): 79275208

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 117269, 234538, 469076, 938152, 1876304, 5042567, 10085134, 20170268, 40340536, 80681072]

約数ペア:

[(1, 80681072), (2, 40340536), (4, 20170268), (8, 10085134), (16, 5042567), (43, 1876304), (86, 938152), (172, 469076), (344, 234538), (688, 117269)]