20172837640

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{387641}}^1$

素因数の和:388953

約数の個数: 32

約数和(自身を含む): 45423889560

約数和(自身を除く): 25251051920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 2602, 5204, 6505, 10408, 13010, 26020, 52040, 387641, 775282, 1550564, 1938205, 3101128, 3876410, 7752820, 15505640, 504320941, 1008641882, 2017283764, 2521604705, 4034567528, 5043209410, 10086418820, 20172837640]

約数ペア:

[(1, 20172837640), (2, 10086418820), (4, 5043209410), (5, 4034567528), (8, 2521604705), (10, 2017283764), (20, 1008641882), (40, 504320941), (1301, 15505640), (2602, 7752820), (5204, 3876410), (6505, 3101128), (10408, 1938205), (13010, 1550564), (26020, 775282), (52040, 387641)]