81158380

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{11057}}^1$

素因数の和:11433

約数の個数: 24

約数和(自身を含む): 170912448

約数和(自身を除く): 89754068

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 7340, 11057, 22114, 44228, 55285, 110570, 221140, 4057919, 8115838, 16231676, 20289595, 40579190, 81158380]

約数ペア:

[(1, 81158380), (2, 40579190), (4, 20289595), (5, 16231676), (10, 8115838), (20, 4057919), (367, 221140), (734, 110570), (1468, 55285), (1835, 44228), (3670, 22114), (7340, 11057)]