865768240

素因数分解:

$2^4\times 5^1\times {\mathrm{10822103}}^1$

素因数の和:10822116

約数の個数: 20

約数和(自身を含む): 2012911344

約数和(自身を除く): 1147143104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10822103, 21644206, 43288412, 54110515, 86576824, 108221030, 173153648, 216442060, 432884120, 865768240]

約数ペア:

[(1, 865768240), (2, 432884120), (4, 216442060), (5, 173153648), (8, 108221030), (10, 86576824), (16, 54110515), (20, 43288412), (40, 21644206), (80, 10822103)]