18400365

素因数分解:

$3^4\times 5^1\times {\mathrm{45433}}^1$

素因数の和:45450

約数の個数: 20

約数和(自身を含む): 32985084

約数和(自身を除く): 14584719

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45433, 136299, 227165, 408897, 681495, 1226691, 2044485, 3680073, 6133455, 18400365]

約数ペア:

[(1, 18400365), (3, 6133455), (5, 3680073), (9, 2044485), (15, 1226691), (27, 681495), (45, 408897), (81, 227165), (135, 136299), (405, 45433)]