12435775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{4111}}^1$

素因数の和:4143

約数の個数: 18

約数和(自身を含む): 16953776

約数和(自身を除く): 4518001

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 4111, 20555, 45221, 102775, 226105, 497431, 1130525, 2487155, 12435775]

約数ペア:

[(1, 12435775), (5, 2487155), (11, 1130525), (25, 497431), (55, 226105), (121, 102775), (275, 45221), (605, 20555), (3025, 4111)]