128428675

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{3769}}^1$

素因数の和:3855

約数の個数: 24

約数和(自身を含む): 168292800

約数和(自身を除く): 39864125

約数列:

[1, 5, 25, 29, 47, 145, 235, 725, 1175, 1363, 3769, 6815, 18845, 34075, 94225, 109301, 177143, 546505, 885715, 2732525, 4428575, 5137147, 25685735, 128428675]

約数ペア:

[(1, 128428675), (5, 25685735), (25, 5137147), (29, 4428575), (47, 2732525), (145, 885715), (235, 546505), (725, 177143), (1175, 109301), (1363, 94225), (3769, 34075), (6815, 18845)]