211717480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{407149}}^1$

素因数の和:407173

約数の個数: 32

約数和(自身を含む): 513009000

約数和(自身を除く): 301291520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 407149, 814298, 1628596, 2035745, 3257192, 4071490, 5292937, 8142980, 10585874, 16285960, 21171748, 26464685, 42343496, 52929370, 105858740, 211717480]

約数ペア:

[(1, 211717480), (2, 105858740), (4, 52929370), (5, 42343496), (8, 26464685), (10, 21171748), (13, 16285960), (20, 10585874), (26, 8142980), (40, 5292937), (52, 4071490), (65, 3257192), (104, 2035745), (130, 1628596), (260, 814298), (520, 407149)]