811422440

素因数分解:

$2^3\times 5^1\times {\mathrm{20285561}}^1$

素因数の和:20285572

約数の個数: 16

約数和(自身を含む): 1825700580

約数和(自身を除く): 1014278140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20285561, 40571122, 81142244, 101427805, 162284488, 202855610, 405711220, 811422440]

約数ペア:

[(1, 811422440), (2, 405711220), (4, 202855610), (5, 162284488), (8, 101427805), (10, 81142244), (20, 40571122), (40, 20285561)]