20778540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{346309}}^1$

素因数の和:346321

約数の個数: 24

約数和(自身を含む): 58180080

約数和(自身を除く): 37401540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 346309, 692618, 1038927, 1385236, 1731545, 2077854, 3463090, 4155708, 5194635, 6926180, 10389270, 20778540]

約数ペア:

[(1, 20778540), (2, 10389270), (3, 6926180), (4, 5194635), (5, 4155708), (6, 3463090), (10, 2077854), (12, 1731545), (15, 1385236), (20, 1038927), (30, 692618), (60, 346309)]