19040720

素因数分解:

$2^4\times 5^1\times {\mathrm{238009}}^1$

素因数の和:238022

約数の個数: 20

約数和(自身を含む): 44269860

約数和(自身を除く): 25229140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238009, 476018, 952036, 1190045, 1904072, 2380090, 3808144, 4760180, 9520360, 19040720]

約数ペア:

[(1, 19040720), (2, 9520360), (4, 4760180), (5, 3808144), (8, 2380090), (10, 1904072), (16, 1190045), (20, 952036), (40, 476018), (80, 238009)]