208720

素因数分解:

$2^4\times 5^1\times {\mathrm{2609}}^1$

素因数の和:2622

約数の個数: 20

約数和(自身を含む): 485460

約数和(自身を除く): 276740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2609, 5218, 10436, 13045, 20872, 26090, 41744, 52180, 104360, 208720]

約数ペア:

[(1, 208720), (2, 104360), (4, 52180), (5, 41744), (8, 26090), (10, 20872), (16, 13045), (20, 10436), (40, 5218), (80, 2609)]