20798580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31513}}^1$

素因数の和:31536

約数の個数: 48

約数和(自身を含む): 63532224

約数和(自身を除く): 42733644

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31513, 63026, 94539, 126052, 157565, 189078, 315130, 346643, 378156, 472695, 630260, 693286, 945390, 1039929, 1386572, 1733215, 1890780, 2079858, 3466430, 4159716, 5199645, 6932860, 10399290, 20798580]

約数ペア:

[(1, 20798580), (2, 10399290), (3, 6932860), (4, 5199645), (5, 4159716), (6, 3466430), (10, 2079858), (11, 1890780), (12, 1733215), (15, 1386572), (20, 1039929), (22, 945390), (30, 693286), (33, 630260), (44, 472695), (55, 378156), (60, 346643), (66, 315130), (110, 189078), (132, 157565), (165, 126052), (220, 94539), (330, 63026), (660, 31513)]