4180720

素因数分解:

$2^4\times 5^1\times {\mathrm{52259}}^1$

素因数の和:52272

約数の個数: 20

約数和(自身を含む): 9720360

約数和(自身を除く): 5539640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 52259, 104518, 209036, 261295, 418072, 522590, 836144, 1045180, 2090360, 4180720]

約数ペア:

[(1, 4180720), (2, 2090360), (4, 1045180), (5, 836144), (8, 522590), (10, 418072), (16, 261295), (20, 209036), (40, 104518), (80, 52259)]