128296868

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{11779}}^1$

素因数の和:12179

約数の個数: 24

約数和(自身を含む): 257275200

約数和(自身を除く): 128978332

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 2723, 5446, 10892, 11779, 23558, 47116, 82453, 164906, 329812, 4582031, 9164062, 18328124, 32074217, 64148434, 128296868]

約数ペア:

[(1, 128296868), (2, 64148434), (4, 32074217), (7, 18328124), (14, 9164062), (28, 4582031), (389, 329812), (778, 164906), (1556, 82453), (2723, 47116), (5446, 23558), (10892, 11779)]