28128925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{439}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 38301120

約数和(自身を除く): 10172195

約数列:

[1, 5, 11, 25, 55, 233, 275, 439, 1165, 2195, 2563, 4829, 5825, 10975, 12815, 24145, 64075, 102287, 120725, 511435, 1125157, 2557175, 5625785, 28128925]

約数ペア:

[(1, 28128925), (5, 5625785), (11, 2557175), (25, 1125157), (55, 511435), (233, 120725), (275, 102287), (439, 64075), (1165, 24145), (2195, 12815), (2563, 10975), (4829, 5825)]