28430575

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 36379616

約数和(自身を除く): 7949041

約数列:

[1, 5, 25, 61, 103, 181, 305, 515, 905, 1525, 2575, 4525, 6283, 11041, 18643, 31415, 55205, 93215, 157075, 276025, 466075, 1137223, 5686115, 28430575]

約数ペア:

[(1, 28430575), (5, 5686115), (25, 1137223), (61, 466075), (103, 276025), (181, 157075), (305, 93215), (515, 55205), (905, 31415), (1525, 18643), (2575, 11041), (4525, 6283)]