639956718

素因数分解:

$2^1\times 3^2\times {\mathrm{859}}^1\times {\mathrm{41389}}^1$

素因数の和:42256

約数の個数: 24

約数和(自身を含む): 1388220600

約数和(自身を除く): 748263882

約数列:

[1, 2, 3, 6, 9, 18, 859, 1718, 2577, 5154, 7731, 15462, 41389, 82778, 124167, 248334, 372501, 745002, 35553151, 71106302, 106659453, 213318906, 319978359, 639956718]

約数ペア:

[(1, 639956718), (2, 319978359), (3, 213318906), (6, 106659453), (9, 71106302), (18, 35553151), (859, 745002), (1718, 372501), (2577, 248334), (5154, 124167), (7731, 82778), (15462, 41389)]