28388775

素因数分解:

$3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4253}}^1$

素因数の和:4355

約数の個数: 24

約数和(自身を含む): 47474640

約数和(自身を除く): 19085865

約数列:

[1, 3, 5, 15, 25, 75, 89, 267, 445, 1335, 2225, 4253, 6675, 12759, 21265, 63795, 106325, 318975, 378517, 1135551, 1892585, 5677755, 9462925, 28388775]

約数ペア:

[(1, 28388775), (3, 9462925), (5, 5677755), (15, 1892585), (25, 1135551), (75, 378517), (89, 318975), (267, 106325), (445, 63795), (1335, 21265), (2225, 12759), (4253, 6675)]