78906806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{349}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 133056000

約数和(自身を除く): 54149194

約数列:

[1, 2, 11, 22, 43, 86, 239, 349, 473, 478, 698, 946, 2629, 3839, 5258, 7678, 10277, 15007, 20554, 30014, 83411, 113047, 165077, 166822, 226094, 330154, 917521, 1835042, 3586673, 7173346, 39453403, 78906806]

約数ペア:

[(1, 78906806), (2, 39453403), (11, 7173346), (22, 3586673), (43, 1835042), (86, 917521), (239, 330154), (349, 226094), (473, 166822), (478, 165077), (698, 113047), (946, 83411), (2629, 30014), (3839, 20554), (5258, 15007), (7678, 10277)]