66408880

素因数分解:

$2^4\times 5^1\times {\mathrm{830111}}^1$

素因数の和:830124

約数の個数: 20

約数和(自身を含む): 154400832

約数和(自身を除く): 87991952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 830111, 1660222, 3320444, 4150555, 6640888, 8301110, 13281776, 16602220, 33204440, 66408880]

約数ペア:

[(1, 66408880), (2, 33204440), (4, 16602220), (5, 13281776), (8, 8301110), (10, 6640888), (16, 4150555), (20, 3320444), (40, 1660222), (80, 830111)]