1645647988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1213}}^1\times {\mathrm{17851}}^1$

素因数の和:19087

約数の個数: 24

約数和(自身を含む): 3034125920

約数和(自身を除く): 1388477932

約数列:

[1, 2, 4, 19, 38, 76, 1213, 2426, 4852, 17851, 23047, 35702, 46094, 71404, 92188, 339169, 678338, 1356676, 21653263, 43306526, 86613052, 411411997, 822823994, 1645647988]

約数ペア:

[(1, 1645647988), (2, 822823994), (4, 411411997), (19, 86613052), (38, 43306526), (76, 21653263), (1213, 1356676), (2426, 678338), (4852, 339169), (17851, 92188), (23047, 71404), (35702, 46094)]