81355730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{280537}}^1$

素因数の和:280573

約数の個数: 16

約数和(自身を含む): 151490520

約数和(自身を除く): 70134790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 280537, 561074, 1402685, 2805370, 8135573, 16271146, 40677865, 81355730]

約数ペア:

[(1, 81355730), (2, 40677865), (5, 16271146), (10, 8135573), (29, 2805370), (58, 1402685), (145, 561074), (290, 280537)]