39980385

素因数分解:

$3^4\times 5^1\times {\mathrm{98717}}^1$

素因数の和:98734

約数の個数: 20

約数和(自身を含む): 71669268

約数和(自身を除く): 31688883

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 98717, 296151, 493585, 888453, 1480755, 2665359, 4442265, 7996077, 13326795, 39980385]

約数ペア:

[(1, 39980385), (3, 13326795), (5, 7996077), (9, 4442265), (15, 2665359), (27, 1480755), (45, 888453), (81, 493585), (135, 296151), (405, 98717)]