280120897

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{19919}}^1$

素因数の和:19981

約数の個数: 16

約数和(自身を含む): 334656000

約数和(自身を除く): 54535103

約数列:

[1, 7, 41, 49, 287, 343, 2009, 14063, 19919, 139433, 816679, 976031, 5716753, 6832217, 40017271, 280120897]

約数ペア:

[(1, 280120897), (7, 40017271), (41, 6832217), (49, 5716753), (287, 976031), (343, 816679), (2009, 139433), (14063, 19919)]