123199984

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{145283}}^1$

素因数の和:145344

約数の個数: 20

約数和(自身を含む): 243205416

約数和(自身を除く): 120005432

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 145283, 290566, 581132, 1162264, 2324528, 7699999, 15399998, 30799996, 61599992, 123199984]

約数ペア:

[(1, 123199984), (2, 61599992), (4, 30799996), (8, 15399998), (16, 7699999), (53, 2324528), (106, 1162264), (212, 581132), (424, 290566), (848, 145283)]