80997340

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{3137}}^1$

素因数の和:4437

約数の個数: 24

約数和(自身を含む): 170280432

約数和(自身を除く): 89283092

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 3137, 5164, 6274, 6455, 12548, 12910, 15685, 25820, 31370, 62740, 4049867, 8099734, 16199468, 20249335, 40498670, 80997340]

約数ペア:

[(1, 80997340), (2, 40498670), (4, 20249335), (5, 16199468), (10, 8099734), (20, 4049867), (1291, 62740), (2582, 31370), (3137, 25820), (5164, 15685), (6274, 12910), (6455, 12548)]