211012020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{390763}}^1$

素因数の和:390781

約数の個数: 48

約数和(自身を含む): 656483520

約数和(自身を除く): 445471500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 390763, 781526, 1172289, 1563052, 1953815, 2344578, 3516867, 3907630, 4689156, 5861445, 7033734, 7815260, 10550601, 11722890, 14067468, 17584335, 21101202, 23445780, 35168670, 42202404, 52753005, 70337340, 105506010, 211012020]

約数ペア:

[(1, 211012020), (2, 105506010), (3, 70337340), (4, 52753005), (5, 42202404), (6, 35168670), (9, 23445780), (10, 21101202), (12, 17584335), (15, 14067468), (18, 11722890), (20, 10550601), (27, 7815260), (30, 7033734), (36, 5861445), (45, 4689156), (54, 3907630), (60, 3516867), (90, 2344578), (108, 1953815), (135, 1563052), (180, 1172289), (270, 781526), (540, 390763)]