25840720

素因数分解:

$2^4\times 5^1\times {\mathrm{323009}}^1$

素因数の和:323022

約数の個数: 20

約数和(自身を含む): 60079860

約数和(自身を除く): 34239140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323009, 646018, 1292036, 1615045, 2584072, 3230090, 5168144, 6460180, 12920360, 25840720]

約数ペア:

[(1, 25840720), (2, 12920360), (4, 6460180), (5, 5168144), (8, 3230090), (10, 2584072), (16, 1615045), (20, 1292036), (40, 646018), (80, 323009)]