765045

素因数分解:

$3^4\times 5^1\times {\mathrm{1889}}^1$

素因数の和:1906

約数の個数: 20

約数和(自身を含む): 1372140

約数和(自身を除く): 607095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1889, 5667, 9445, 17001, 28335, 51003, 85005, 153009, 255015, 765045]

約数ペア:

[(1, 765045), (3, 255015), (5, 153009), (9, 85005), (15, 51003), (27, 28335), (45, 17001), (81, 9445), (135, 5667), (405, 1889)]