208804016

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{25639}}^1$

素因数の和:26156

約数の個数: 20

約数和(自身を含む): 405368400

約数和(自身を除く): 196564384

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 4072, 8144, 25639, 51278, 102556, 205112, 410224, 13050251, 26100502, 52201004, 104402008, 208804016]

約数ペア:

[(1, 208804016), (2, 104402008), (4, 52201004), (8, 26100502), (16, 13050251), (509, 410224), (1018, 205112), (2036, 102556), (4072, 51278), (8144, 25639)]