128520854

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{26921}}^1$

素因数の和:26972

約数の個数: 32

約数和(自身を含む): 248113152

約数和(自身を除く): 119592298

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 2387, 4774, 26921, 53842, 188447, 296131, 376894, 592262, 834551, 1669102, 2072917, 4145834, 5841857, 9180061, 11683714, 18360122, 64260427, 128520854]

約数ペア:

[(1, 128520854), (2, 64260427), (7, 18360122), (11, 11683714), (14, 9180061), (22, 5841857), (31, 4145834), (62, 2072917), (77, 1669102), (154, 834551), (217, 592262), (341, 376894), (434, 296131), (682, 188447), (2387, 53842), (4774, 26921)]