12389680

素因数分解:

$2^4\times 5^1\times {\mathrm{154871}}^1$

素因数の和:154884

約数の個数: 20

約数和(自身を含む): 28806192

約数和(自身を除く): 16416512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 154871, 309742, 619484, 774355, 1238968, 1548710, 2477936, 3097420, 6194840, 12389680]

約数ペア:

[(1, 12389680), (2, 6194840), (4, 3097420), (5, 2477936), (8, 1548710), (10, 1238968), (16, 774355), (20, 619484), (40, 309742), (80, 154871)]