209550715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1039}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 290534400

約数和(自身を除く): 80983685

約数列:

[1, 5, 11, 19, 55, 95, 193, 209, 965, 1039, 1045, 2123, 3667, 5195, 10615, 11429, 18335, 19741, 40337, 57145, 98705, 200527, 201685, 217151, 1002635, 1085755, 2205797, 3810013, 11028985, 19050065, 41910143, 209550715]

約数ペア:

[(1, 209550715), (5, 41910143), (11, 19050065), (19, 11028985), (55, 3810013), (95, 2205797), (193, 1085755), (209, 1002635), (965, 217151), (1039, 201685), (1045, 200527), (2123, 98705), (3667, 57145), (5195, 40337), (10615, 19741), (11429, 18335)]