388450760

素因数分解:

$2^3\times 5^1\times {\mathrm{9711269}}^1$

素因数の和:9711280

約数の個数: 16

約数和(自身を含む): 874014300

約数和(自身を除く): 485563540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9711269, 19422538, 38845076, 48556345, 77690152, 97112690, 194225380, 388450760]

約数ペア:

[(1, 388450760), (2, 194225380), (4, 97112690), (5, 77690152), (8, 48556345), (10, 38845076), (20, 19422538), (40, 9711269)]