80775580

素因数分解:

$2^2\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{3449}}^1$

素因数の和:4629

約数の個数: 24

約数和(自身を含む): 169822800

約数和(自身を除く): 89047220

約数列:

[1, 2, 4, 5, 10, 20, 1171, 2342, 3449, 4684, 5855, 6898, 11710, 13796, 17245, 23420, 34490, 68980, 4038779, 8077558, 16155116, 20193895, 40387790, 80775580]

約数ペア:

[(1, 80775580), (2, 40387790), (4, 20193895), (5, 16155116), (10, 8077558), (20, 4038779), (1171, 68980), (2342, 34490), (3449, 23420), (4684, 17245), (5855, 13796), (6898, 11710)]