254983420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{1283}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 565165440

約数和(自身を除く): 310182020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 523, 1046, 1283, 2092, 2566, 2615, 5132, 5230, 6415, 9937, 10460, 12830, 19874, 24377, 25660, 39748, 48754, 49685, 97508, 99370, 121885, 198740, 243770, 487540, 671009, 1342018, 2684036, 3355045, 6710090, 12749171, 13420180, 25498342, 50996684, 63745855, 127491710, 254983420]

約数ペア:

[(1, 254983420), (2, 127491710), (4, 63745855), (5, 50996684), (10, 25498342), (19, 13420180), (20, 12749171), (38, 6710090), (76, 3355045), (95, 2684036), (190, 1342018), (380, 671009), (523, 487540), (1046, 243770), (1283, 198740), (2092, 121885), (2566, 99370), (2615, 97508), (5132, 49685), (5230, 48754), (6415, 39748), (9937, 25660), (10460, 24377), (12830, 19874)]