12820460

素因数分解:

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

素因数の和:4825

約数の個数: 24

約数和(自身を含む): 27125280

約数和(自身を除く): 14304820

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 4679, 9358, 18716, 23395, 46790, 93580, 641023, 1282046, 2564092, 3205115, 6410230, 12820460]

約数ペア:

[(1, 12820460), (2, 6410230), (4, 3205115), (5, 2564092), (10, 1282046), (20, 641023), (137, 93580), (274, 46790), (548, 23395), (685, 18716), (1370, 9358), (2740, 4679)]