199901090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1052111}}^1$

素因数の和:1052137

約数の個数: 16

約数和(自身を含む): 378760320

約数和(自身を除く): 178859230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1052111, 2104222, 5260555, 10521110, 19990109, 39980218, 99950545, 199901090]

約数ペア:

[(1, 199901090), (2, 99950545), (5, 39980218), (10, 19990109), (19, 10521110), (38, 5260555), (95, 2104222), (190, 1052111)]