20882052.000000000

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{988951}}^1$

素因数の和:988966

約数の個数: 36

約数和(自身を含む): 539967792

約数和(自身を除く): 361956612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 988951, 1977902, 2966853, 3955804, 4944755, 5933706, 8900559, 9889510, 11867412, 14834265, 17801118, 19779020, 29668530, 35602236, 44502795, 59337060, 89005590, 178011180]

約数ペア:

[(1, 178011180), (2, 89005590), (3, 59337060), (4, 44502795), (5, 35602236), (6, 29668530), (9, 19779020), (10, 17801118), (12, 14834265), (15, 11867412), (18, 9889510), (20, 8900559), (30, 5933706), (36, 4944755), (45, 3955804), (60, 2966853), (90, 1977902), (180, 988951)]