28178440

素因数分解:

$2^3\times 5^1\times {\mathrm{704461}}^1$

素因数の和:704472

約数の個数: 16

約数和(自身を含む): 63401580

約数和(自身を除く): 35223140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 704461, 1408922, 2817844, 3522305, 5635688, 7044610, 14089220, 28178440]

約数ペア:

[(1, 28178440), (2, 14089220), (4, 7044610), (5, 5635688), (8, 3522305), (10, 2817844), (20, 1408922), (40, 704461)]