199882705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{379}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 269660160

約数和(自身を除く): 69777455

約数列:

[1, 5, 11, 43, 55, 215, 223, 379, 473, 1115, 1895, 2365, 2453, 4169, 9589, 12265, 16297, 20845, 47945, 81485, 84517, 105479, 179267, 422585, 527395, 896335, 929687, 3634231, 4648435, 18171155, 39976541, 199882705]

約数ペア:

[(1, 199882705), (5, 39976541), (11, 18171155), (43, 4648435), (55, 3634231), (215, 929687), (223, 896335), (379, 527395), (473, 422585), (1115, 179267), (1895, 105479), (2365, 84517), (2453, 81485), (4169, 47945), (9589, 20845), (12265, 16297)]