81529120

素因数分解:

$2^5\times 5^1\times {\mathrm{509557}}^1$

素因数の和:509572

約数の個数: 24

約数和(自身を含む): 192612924

約数和(自身を除く): 111083804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509557, 1019114, 2038228, 2547785, 4076456, 5095570, 8152912, 10191140, 16305824, 20382280, 40764560, 81529120]

約数ペア:

[(1, 81529120), (2, 40764560), (4, 20382280), (5, 16305824), (8, 10191140), (10, 8152912), (16, 5095570), (20, 4076456), (32, 2547785), (40, 2038228), (80, 1019114), (160, 509557)]