128255216

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195511}}^1$

素因数の和:195560

約数の個数: 20

約数和(自身を含む): 254556624

約数和(自身を除く): 126301408

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195511, 391022, 782044, 1564088, 3128176, 8015951, 16031902, 32063804, 64127608, 128255216]

約数ペア:

[(1, 128255216), (2, 64127608), (4, 32063804), (8, 16031902), (16, 8015951), (41, 3128176), (82, 1564088), (164, 782044), (328, 391022), (656, 195511)]