81878258

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{27983}}^1$

素因数の和:28022

約数の個数: 32

約数和(自身を含む): 161187840

約数和(自身を除く): 79309582

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 27983, 55966, 195881, 307813, 391762, 531677, 615626, 1063354, 2154691, 3721739, 4309382, 5848447, 7443478, 11696894, 40939129, 81878258]

約数ペア:

[(1, 81878258), (2, 40939129), (7, 11696894), (11, 7443478), (14, 5848447), (19, 4309382), (22, 3721739), (38, 2154691), (77, 1063354), (133, 615626), (154, 531677), (209, 391762), (266, 307813), (418, 195881), (1463, 55966), (2926, 27983)]