28305975

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7121}}^1$

素因数の和:7187

約数の個数: 24

約数和(自身を含む): 47688912

約数和(自身を除く): 19382937

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 7121, 21363, 35605, 106815, 178025, 377413, 534075, 1132239, 1887065, 5661195, 9435325, 28305975]

約数ペア:

[(1, 28305975), (3, 9435325), (5, 5661195), (15, 1887065), (25, 1132239), (53, 534075), (75, 377413), (159, 178025), (265, 106815), (795, 35605), (1325, 21363), (3975, 7121)]