128236120

素因数分解:

$2^3\times 5^1\times {\mathrm{3205903}}^1$

素因数の和:3205914

約数の個数: 16

約数和(自身を含む): 288531360

約数和(自身を除く): 160295240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3205903, 6411806, 12823612, 16029515, 25647224, 32059030, 64118060, 128236120]

約数ペア:

[(1, 128236120), (2, 64118060), (4, 32059030), (5, 25647224), (8, 16029515), (10, 12823612), (20, 6411806), (40, 3205903)]