81720428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{20369}}^1$

素因数の和:20449

約数の個数: 24

約数和(自身を含む): 153997200

約数和(自身を除く): 72276772

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 20369, 40738, 81476, 346273, 692546, 1201771, 1385092, 2403542, 4807084, 20430107, 40860214, 81720428]

約数ペア:

[(1, 81720428), (2, 40860214), (4, 20430107), (17, 4807084), (34, 2403542), (59, 1385092), (68, 1201771), (118, 692546), (236, 346273), (1003, 81476), (2006, 40738), (4012, 20369)]