81678884

素因数分解:

$2^2\times 7^2\times {\mathrm{331}}^1\times {\mathrm{1259}}^1$

素因数の和:1608

約数の個数: 36

約数和(自身を含む): 166909680

約数和(自身を除く): 85230796

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 331, 662, 1259, 1324, 2317, 2518, 4634, 5036, 8813, 9268, 16219, 17626, 32438, 35252, 61691, 64876, 123382, 246764, 416729, 833458, 1666916, 2917103, 5834206, 11668412, 20419721, 40839442, 81678884]

約数ペア:

[(1, 81678884), (2, 40839442), (4, 20419721), (7, 11668412), (14, 5834206), (28, 2917103), (49, 1666916), (98, 833458), (196, 416729), (331, 246764), (662, 123382), (1259, 64876), (1324, 61691), (2317, 35252), (2518, 32438), (4634, 17626), (5036, 16219), (8813, 9268)]