2019967216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{19717}}^1$

素因数の和:20081

約数の個数: 40

約数和(自身を含む): 4132104080

約数和(自身を除く): 2112136864

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 337, 674, 1348, 2696, 5392, 6403, 12806, 19717, 25612, 39434, 51224, 78868, 102448, 157736, 315472, 374623, 749246, 1498492, 2996984, 5993968, 6644629, 13289258, 26578516, 53157032, 106314064, 126247951, 252495902, 504991804, 1009983608, 2019967216]

約数ペア:

[(1, 2019967216), (2, 1009983608), (4, 504991804), (8, 252495902), (16, 126247951), (19, 106314064), (38, 53157032), (76, 26578516), (152, 13289258), (304, 6644629), (337, 5993968), (674, 2996984), (1348, 1498492), (2696, 749246), (5392, 374623), (6403, 315472), (12806, 157736), (19717, 102448), (25612, 78868), (39434, 51224)]