20982570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2437}}^1$

素因数の和:2495

約数の個数: 64

約数和(自身を含む): 58980096

約数和(自身を除く): 37997526

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 70, 82, 105, 123, 205, 210, 246, 287, 410, 574, 615, 861, 1230, 1435, 1722, 2437, 2870, 4305, 4874, 7311, 8610, 12185, 14622, 17059, 24370, 34118, 36555, 51177, 73110, 85295, 99917, 102354, 170590, 199834, 255885, 299751, 499585, 511770, 599502, 699419, 999170, 1398838, 1498755, 2098257, 2997510, 3497095, 4196514, 6994190, 10491285, 20982570]

約数ペア:

[(1, 20982570), (2, 10491285), (3, 6994190), (5, 4196514), (6, 3497095), (7, 2997510), (10, 2098257), (14, 1498755), (15, 1398838), (21, 999170), (30, 699419), (35, 599502), (41, 511770), (42, 499585), (70, 299751), (82, 255885), (105, 199834), (123, 170590), (205, 102354), (210, 99917), (246, 85295), (287, 73110), (410, 51177), (574, 36555), (615, 34118), (861, 24370), (1230, 17059), (1435, 14622), (1722, 12185), (2437, 8610), (2870, 7311), (4305, 4874)]