20415105

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1559}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 16276095

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 291, 485, 873, 1455, 1559, 2619, 4365, 4677, 7795, 13095, 14031, 23385, 42093, 70155, 151223, 210465, 453669, 756115, 1361007, 2268345, 4083021, 6805035, 20415105]

約数ペア:

[(1, 20415105), (3, 6805035), (5, 4083021), (9, 2268345), (15, 1361007), (27, 756115), (45, 453669), (97, 210465), (135, 151223), (291, 70155), (485, 42093), (873, 23385), (1455, 14031), (1559, 13095), (2619, 7795), (4365, 4677)]