20924560

素因数分解:

$2^4\times 5^1\times {\mathrm{261557}}^1$

素因数の和:261570

約数の個数: 20

約数和(自身を含む): 48649788

約数和(自身を除く): 27725228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261557, 523114, 1046228, 1307785, 2092456, 2615570, 4184912, 5231140, 10462280, 20924560]

約数ペア:

[(1, 20924560), (2, 10462280), (4, 5231140), (5, 4184912), (8, 2615570), (10, 2092456), (16, 1307785), (20, 1046228), (40, 523114), (80, 261557)]