81904858

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{839}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 148377600

約数和(自身を除く): 66472742

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 367, 734, 839, 1678, 2569, 5138, 5873, 6973, 11746, 13946, 15941, 31882, 48811, 97622, 111587, 223174, 307913, 615826, 2155391, 4310782, 5850347, 11700694, 40952429, 81904858]

約数ペア:

[(1, 81904858), (2, 40952429), (7, 11700694), (14, 5850347), (19, 4310782), (38, 2155391), (133, 615826), (266, 307913), (367, 223174), (734, 111587), (839, 97622), (1678, 48811), (2569, 31882), (5138, 15941), (5873, 13946), (6973, 11746)]