81630460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{214817}}^1$

素因数の和:214845

約数の個数: 24

約数和(自身を含む): 180447120

約数和(自身を除く): 98816660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 214817, 429634, 859268, 1074085, 2148170, 4081523, 4296340, 8163046, 16326092, 20407615, 40815230, 81630460]

約数ペア:

[(1, 81630460), (2, 40815230), (4, 20407615), (5, 16326092), (10, 8163046), (19, 4296340), (20, 4081523), (38, 2148170), (76, 1074085), (95, 859268), (190, 429634), (380, 214817)]