51281840

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4679}}^1$

素因数の和:4829

約数の個数: 40

約数和(自身を含む): 120126240

約数和(自身を除く): 68844400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 4679, 5480, 9358, 10960, 18716, 23395, 37432, 46790, 74864, 93580, 187160, 374320, 641023, 1282046, 2564092, 3205115, 5128184, 6410230, 10256368, 12820460, 25640920, 51281840]

約数ペア:

[(1, 51281840), (2, 25640920), (4, 12820460), (5, 10256368), (8, 6410230), (10, 5128184), (16, 3205115), (20, 2564092), (40, 1282046), (80, 641023), (137, 374320), (274, 187160), (548, 93580), (685, 74864), (1096, 46790), (1370, 37432), (2192, 23395), (2740, 18716), (4679, 10960), (5480, 9358)]