20616420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31237}}^1$

素因数の和:31260

約数の個数: 48

約数和(自身を含む): 62975808

約数和(自身を除く): 42359388

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, 31237, 62474, 93711, 124948, 156185, 187422, 312370, 343607, 374844, 468555, 624740, 687214, 937110, 1030821, 1374428, 1718035, 1874220, 2061642, 3436070, 4123284, 5154105, 6872140, 10308210, 20616420]

約数ペア:

[(1, 20616420), (2, 10308210), (3, 6872140), (4, 5154105), (5, 4123284), (6, 3436070), (10, 2061642), (11, 1874220), (12, 1718035), (15, 1374428), (20, 1030821), (22, 937110), (30, 687214), (33, 624740), (44, 468555), (55, 374844), (60, 343607), (66, 312370), (110, 187422), (132, 156185), (165, 124948), (220, 93711), (330, 62474), (660, 31237)]