20565381010

素因数分解:

$2^1\times 5^1\times {\mathrm{2311}}^1\times {\mathrm{889891}}^1$

素因数の和:892209

約数の個数: 16

約数和(自身を含む): 37033745472

約数和(自身を除く): 16468364462

約数列:

[1, 2, 5, 10, 2311, 4622, 11555, 23110, 889891, 1779782, 4449455, 8898910, 2056538101, 4113076202, 10282690505, 20565381010]

約数ペア:

[(1, 20565381010), (2, 10282690505), (5, 4113076202), (10, 2056538101), (2311, 8898910), (4622, 4449455), (11555, 1779782), (23110, 889891)]