28371760

素因数分解:

$2^4\times 5^1\times {\mathrm{354647}}^1$

素因数の和:354660

約数の個数: 20

約数和(自身を含む): 65964528

約数和(自身を除く): 37592768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354647, 709294, 1418588, 1773235, 2837176, 3546470, 5674352, 7092940, 14185880, 28371760]

約数ペア:

[(1, 28371760), (2, 14185880), (4, 7092940), (5, 5674352), (8, 3546470), (10, 2837176), (16, 1773235), (20, 1418588), (40, 709294), (80, 354647)]