138965380

素因数分解:

$2^2\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{3511}}^1$

素因数の和:5499

約数の個数: 24

約数和(自身を含む): 292057920

約数和(自身を除く): 153092540

約数列:

[1, 2, 4, 5, 10, 20, 1979, 3511, 3958, 7022, 7916, 9895, 14044, 17555, 19790, 35110, 39580, 70220, 6948269, 13896538, 27793076, 34741345, 69482690, 138965380]

約数ペア:

[(1, 138965380), (2, 69482690), (4, 34741345), (5, 27793076), (10, 13896538), (20, 6948269), (1979, 70220), (3511, 39580), (3958, 35110), (7022, 19790), (7916, 17555), (9895, 14044)]