156911985

素因数分解:

$3^4\times 5^1\times {\mathrm{387437}}^1$

素因数の和:387454

約数の個数: 20

約数和(自身を含む): 281279988

約数和(自身を除く): 124368003

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 387437, 1162311, 1937185, 3486933, 5811555, 10460799, 17434665, 31382397, 52303995, 156911985]

約数ペア:

[(1, 156911985), (3, 52303995), (5, 31382397), (9, 17434665), (15, 10460799), (27, 5811555), (45, 3486933), (81, 1937185), (135, 1162311), (405, 387437)]