17440

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1$

素因数の和:124

約数の個数: 24

約数和(自身を含む): 41580

約数和(自身を除く): 24140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 17440]

約数ペア:

[(1, 17440), (2, 8720), (4, 4360), (5, 3488), (8, 2180), (10, 1744), (16, 1090), (20, 872), (32, 545), (40, 436), (80, 218), (109, 160)]