199980358

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{122387}}^1$

素因数の和:122451

約数の個数: 16

約数和(自身を含む): 323104320

約数和(自身を除く): 123123962

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 122387, 244774, 2325353, 4650706, 5262641, 10525282, 99990179, 199980358]

約数ペア:

[(1, 199980358), (2, 99990179), (19, 10525282), (38, 5262641), (43, 4650706), (86, 2325353), (817, 244774), (1634, 122387)]