30257840

素因数分解:

$2^4\times 5^1\times {\mathrm{378223}}^1$

素因数の和:378236

約数の個数: 20

約数和(自身を含む): 70349664

約数和(自身を除く): 40091824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 378223, 756446, 1512892, 1891115, 3025784, 3782230, 6051568, 7564460, 15128920, 30257840]

約数ペア:

[(1, 30257840), (2, 15128920), (4, 7564460), (5, 6051568), (8, 3782230), (10, 3025784), (16, 1891115), (20, 1512892), (40, 756446), (80, 378223)]