407388620

素因数分解:

$2^2\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{19381}}^1$

素因数の和:20441

約数の個数: 24

約数和(自身を含む): 856374288

約数和(自身を除く): 448985668

約数列:

[1, 2, 4, 5, 10, 20, 1051, 2102, 4204, 5255, 10510, 19381, 21020, 38762, 77524, 96905, 193810, 387620, 20369431, 40738862, 81477724, 101847155, 203694310, 407388620]

約数ペア:

[(1, 407388620), (2, 203694310), (4, 101847155), (5, 81477724), (10, 40738862), (20, 20369431), (1051, 387620), (2102, 193810), (4204, 96905), (5255, 77524), (10510, 38762), (19381, 21020)]