161604920

素因数分解:

$2^3\times 5^1\times {\mathrm{4040123}}^1$

素因数の和:4040134

約数の個数: 16

約数和(自身を含む): 363611160

約数和(自身を除く): 202006240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4040123, 8080246, 16160492, 20200615, 32320984, 40401230, 80802460, 161604920]

約数ペア:

[(1, 161604920), (2, 80802460), (4, 40401230), (5, 32320984), (8, 20200615), (10, 16160492), (20, 8080246), (40, 4040123)]