20800220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148573}}^1$

素因数の和:148589

約数の個数: 24

約数和(自身を含む): 49920864

約数和(自身を除く): 29120644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148573, 297146, 594292, 742865, 1040011, 1485730, 2080022, 2971460, 4160044, 5200055, 10400110, 20800220]

約数ペア:

[(1, 20800220), (2, 10400110), (4, 5200055), (5, 4160044), (7, 2971460), (10, 2080022), (14, 1485730), (20, 1040011), (28, 742865), (35, 594292), (70, 297146), (140, 148573)]