208165005

素因数分解:

$3^3\times 5^1\times {\mathrm{1541963}}^1$

素因数の和:1541977

約数の個数: 16

約数和(自身を含む): 370071360

約数和(自身を除く): 161906355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1541963, 4625889, 7709815, 13877667, 23129445, 41633001, 69388335, 208165005]

約数ペア:

[(1, 208165005), (3, 69388335), (5, 41633001), (9, 23129445), (15, 13877667), (27, 7709815), (45, 4625889), (135, 1541963)]