81637724

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{10159}}^1$

素因数の和:10218

約数の個数: 36

約数和(自身を含む): 170261280

約数和(自身を除く): 88623556

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 4018, 8036, 10159, 20318, 40636, 71113, 142226, 284452, 416519, 497791, 833038, 995582, 1666076, 1991164, 2915633, 5831266, 11662532, 20409431, 40818862, 81637724]

約数ペア:

[(1, 81637724), (2, 40818862), (4, 20409431), (7, 11662532), (14, 5831266), (28, 2915633), (41, 1991164), (49, 1666076), (82, 995582), (98, 833038), (164, 497791), (196, 416519), (287, 284452), (574, 142226), (1148, 71113), (2009, 40636), (4018, 20318), (8036, 10159)]