80978404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{4621}}^1$

素因数の和:4975

約数の個数: 24

約数和(自身を含む): 153099128

約数和(自身を除く): 72120724

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1348, 4381, 4621, 8762, 9242, 17524, 18484, 60073, 120146, 240292, 1557277, 3114554, 6229108, 20244601, 40489202, 80978404]

約数ペア:

[(1, 80978404), (2, 40489202), (4, 20244601), (13, 6229108), (26, 3114554), (52, 1557277), (337, 240292), (674, 120146), (1348, 60073), (4381, 18484), (4621, 17524), (8762, 9242)]