28263125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{4111}}^1$

素因数の和:4142

約数の個数: 20

約数和(自身を含む): 38537664

約数和(自身を除く): 10274539

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 4111, 6875, 20555, 45221, 102775, 226105, 513875, 1130525, 2569375, 5652625, 28263125]

約数ペア:

[(1, 28263125), (5, 5652625), (11, 2569375), (25, 1130525), (55, 513875), (125, 226105), (275, 102775), (625, 45221), (1375, 20555), (4111, 6875)]