128535255

素因数分解:

$3^4\times 5^1\times {\mathrm{317371}}^1$

素因数の和:317388

約数の個数: 20

約数和(自身を含む): 230412072

約数和(自身を除く): 101876817

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 317371, 952113, 1586855, 2856339, 4760565, 8569017, 14281695, 25707051, 42845085, 128535255]

約数ペア:

[(1, 128535255), (3, 42845085), (5, 25707051), (9, 14281695), (15, 8569017), (27, 4760565), (45, 2856339), (81, 1586855), (135, 952113), (405, 317371)]