55288880

素因数分解:

$2^4\times 5^1\times {\mathrm{691111}}^1$

素因数の和:691124

約数の個数: 20

約数和(自身を含む): 128546832

約数和(自身を除く): 73257952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691111, 1382222, 2764444, 3455555, 5528888, 6911110, 11057776, 13822220, 27644440, 55288880]

約数ペア:

[(1, 55288880), (2, 27644440), (4, 13822220), (5, 11057776), (8, 6911110), (10, 5528888), (16, 3455555), (20, 2764444), (40, 1382222), (80, 691111)]