20400824020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53686379}}^1$

素因数の和:53686407

約数の個数: 24

約数和(自身を含む): 45096559200

約数和(自身を除く): 24695735180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53686379, 107372758, 214745516, 268431895, 536863790, 1020041201, 1073727580, 2040082402, 4080164804, 5100206005, 10200412010, 20400824020]

約数ペア:

[(1, 20400824020), (2, 10200412010), (4, 5100206005), (5, 4080164804), (10, 2040082402), (19, 1073727580), (20, 1020041201), (38, 536863790), (76, 268431895), (95, 214745516), (190, 107372758), (380, 53686379)]