2018212912

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{7541}}^1$

素因数の和:7981

約数の個数: 40

約数和(自身を含む): 4012042320

約数和(自身を除く): 1993829408

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 389, 688, 778, 1556, 3112, 6224, 7541, 15082, 16727, 30164, 33454, 60328, 66908, 120656, 133816, 267632, 324263, 648526, 1297052, 2594104, 2933449, 5188208, 5866898, 11733796, 23467592, 46935184, 126138307, 252276614, 504553228, 1009106456, 2018212912]

約数ペア:

[(1, 2018212912), (2, 1009106456), (4, 504553228), (8, 252276614), (16, 126138307), (43, 46935184), (86, 23467592), (172, 11733796), (344, 5866898), (389, 5188208), (688, 2933449), (778, 2594104), (1556, 1297052), (3112, 648526), (6224, 324263), (7541, 267632), (15082, 133816), (16727, 120656), (30164, 66908), (33454, 60328)]