20691780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{344863}}^1$

素因数の和:344875

約数の個数: 24

約数和(自身を含む): 57937152

約数和(自身を除く): 37245372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 344863, 689726, 1034589, 1379452, 1724315, 2069178, 3448630, 4138356, 5172945, 6897260, 10345890, 20691780]

約数ペア:

[(1, 20691780), (2, 10345890), (3, 6897260), (4, 5172945), (5, 4138356), (6, 3448630), (10, 2069178), (12, 1724315), (15, 1379452), (20, 1034589), (30, 689726), (60, 344863)]