199027984

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{89491}}^1$

素因数の和:89638

約数の個数: 20

約数和(自身を含む): 388395280

約数和(自身を除く): 189367296

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 89491, 178982, 357964, 715928, 1431856, 12439249, 24878498, 49756996, 99513992, 199027984]

約数ペア:

[(1, 199027984), (2, 99513992), (4, 49756996), (8, 24878498), (16, 12439249), (139, 1431856), (278, 715928), (556, 357964), (1112, 178982), (2224, 89491)]