68986905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1259}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 119387520

約数和(自身を除く): 50400615

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 281, 843, 1259, 1405, 3653, 3777, 4215, 6295, 10959, 16367, 18265, 18885, 49101, 54795, 81835, 245505, 353779, 1061337, 1768895, 4599127, 5306685, 13797381, 22995635, 68986905]

約数ペア:

[(1, 68986905), (3, 22995635), (5, 13797381), (13, 5306685), (15, 4599127), (39, 1768895), (65, 1061337), (195, 353779), (281, 245505), (843, 81835), (1259, 54795), (1405, 49101), (3653, 18885), (3777, 18265), (4215, 16367), (6295, 10959)]