81773744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393143}}^1$

素因数の和:393164

約数の個数: 20

約数和(自身を含む): 170624496

約数和(自身を除く): 88850752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393143, 786286, 1572572, 3145144, 5110859, 6290288, 10221718, 20443436, 40886872, 81773744]

約数ペア:

[(1, 81773744), (2, 40886872), (4, 20443436), (8, 10221718), (13, 6290288), (16, 5110859), (26, 3145144), (52, 1572572), (104, 786286), (208, 393143)]