261291277318

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{347981}}^1$

素因数の和:348232

約数の個数: 32

約数和(自身を含む): 410980661280

約数和(自身を除く): 149689383962

約数列:

[1, 2, 37, 73, 74, 139, 146, 278, 2701, 5143, 5402, 10147, 10286, 20294, 347981, 375439, 695962, 750878, 12875297, 25402613, 25750594, 48369359, 50805226, 96738718, 939896681, 1789666283, 1879793362, 3530963207, 3579332566, 7061926414, 130645638659, 261291277318]

約数ペア:

[(1, 261291277318), (2, 130645638659), (37, 7061926414), (73, 3579332566), (74, 3530963207), (139, 1879793362), (146, 1789666283), (278, 939896681), (2701, 96738718), (5143, 50805226), (5402, 48369359), (10147, 25750594), (10286, 25402613), (20294, 12875297), (347981, 750878), (375439, 695962)]