81373820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1307}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 187221888

約数和(自身を除く): 105848068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 283, 566, 1132, 1307, 1415, 2614, 2830, 3113, 5228, 5660, 6226, 6535, 12452, 13070, 14377, 15565, 26140, 28754, 31130, 57508, 62260, 71885, 143770, 287540, 369881, 739762, 1479524, 1849405, 3698810, 4068691, 7397620, 8137382, 16274764, 20343455, 40686910, 81373820]

約数ペア:

[(1, 81373820), (2, 40686910), (4, 20343455), (5, 16274764), (10, 8137382), (11, 7397620), (20, 4068691), (22, 3698810), (44, 1849405), (55, 1479524), (110, 739762), (220, 369881), (283, 287540), (566, 143770), (1132, 71885), (1307, 62260), (1415, 57508), (2614, 31130), (2830, 28754), (3113, 26140), (5228, 15565), (5660, 14377), (6226, 13070), (6535, 12452)]