201280005

素因数分解:

$3^3\times 5^1\times {\mathrm{1490963}}^1$

素因数の和:1490977

約数の個数: 16

約数和(自身を含む): 357831360

約数和(自身を除く): 156551355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1490963, 4472889, 7454815, 13418667, 22364445, 40256001, 67093335, 201280005]

約数ペア:

[(1, 201280005), (3, 67093335), (5, 40256001), (9, 22364445), (15, 13418667), (27, 7454815), (45, 4472889), (135, 1490963)]