20581475710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2081039}}^1$

素因数の和:2081112

約数の個数: 32

約数和(自身を含む): 39556408320

約数和(自身を除く): 18974932610

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 4945, 9890, 2081039, 4162078, 10405195, 20810390, 47863897, 89484677, 95727794, 178969354, 239319485, 447423385, 478638970, 894846770, 2058147571, 4116295142, 10290737855, 20581475710]

約数ペア:

[(1, 20581475710), (2, 10290737855), (5, 4116295142), (10, 2058147571), (23, 894846770), (43, 478638970), (46, 447423385), (86, 239319485), (115, 178969354), (215, 95727794), (230, 89484677), (430, 47863897), (989, 20810390), (1978, 10405195), (4945, 4162078), (9890, 2081039)]