20187799184

素因数分解:

$2^4\times 7^1\times {\mathrm{389}}^1\times {\mathrm{463363}}^1$

素因数の和:463767

約数の個数: 40

約数和(自身を含む): 44816566080

約数和(自身を除く): 24628766896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 389, 778, 1556, 2723, 3112, 5446, 6224, 10892, 21784, 43568, 463363, 926726, 1853452, 3243541, 3706904, 6487082, 7413808, 12974164, 25948328, 51896656, 180248207, 360496414, 720992828, 1261737449, 1441985656, 2523474898, 2883971312, 5046949796, 10093899592, 20187799184]

約数ペア:

[(1, 20187799184), (2, 10093899592), (4, 5046949796), (7, 2883971312), (8, 2523474898), (14, 1441985656), (16, 1261737449), (28, 720992828), (56, 360496414), (112, 180248207), (389, 51896656), (778, 25948328), (1556, 12974164), (2723, 7413808), (3112, 6487082), (5446, 3706904), (6224, 3243541), (10892, 1853452), (21784, 926726), (43568, 463363)]