20775265

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4501

約数の個数: 24

約数和(自身を含む): 30533760

約数和(自身を除く): 9758495

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4463, 4655, 22315, 31241, 84797, 156205, 218687, 423985, 593579, 1093435, 2967895, 4155053, 20775265]

約数ペア:

[(1, 20775265), (5, 4155053), (7, 2967895), (19, 1093435), (35, 593579), (49, 423985), (95, 218687), (133, 156205), (245, 84797), (665, 31241), (931, 22315), (4463, 4655)]