123458320

素因数分解:

$2^4\times 5^1\times {\mathrm{1543229}}^1$

素因数の和:1543242

約数の個数: 20

約数和(自身を含む): 287040780

約数和(自身を除く): 163582460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1543229, 3086458, 6172916, 7716145, 12345832, 15432290, 24691664, 30864580, 61729160, 123458320]

約数ペア:

[(1, 123458320), (2, 61729160), (4, 30864580), (5, 24691664), (8, 15432290), (10, 12345832), (16, 7716145), (20, 6172916), (40, 3086458), (80, 1543229)]