28309520

素因数分解:

$2^4\times 5^1\times {\mathrm{353869}}^1$

素因数の和:353882

約数の個数: 20

約数和(自身を含む): 65819820

約数和(自身を除く): 37510300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353869, 707738, 1415476, 1769345, 2830952, 3538690, 5661904, 7077380, 14154760, 28309520]

約数ペア:

[(1, 28309520), (2, 14154760), (4, 7077380), (5, 5661904), (8, 3538690), (10, 2830952), (16, 1769345), (20, 1415476), (40, 707738), (80, 353869)]