123457778

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1\times {\mathrm{2713}}^1$

素因数の和:3149

約数の個数: 16

約数和(自身を含む): 188796696

約数和(自身を除く): 65338918

約数列:

[1, 2, 61, 122, 373, 746, 2713, 5426, 22753, 45506, 165493, 330986, 1011949, 2023898, 61728889, 123457778]

約数ペア:

[(1, 123457778), (2, 61728889), (61, 2023898), (122, 1011949), (373, 330986), (746, 165493), (2713, 45506), (5426, 22753)]