215260412

素因数分解:

$2^2\times {\mathrm{419}}^1\times {\mathrm{128437}}^1$

素因数の和:128860

約数の個数: 12

約数和(自身を含む): 377607720

約数和(自身を除く): 162347308

約数列:

[1, 2, 4, 419, 838, 1676, 128437, 256874, 513748, 53815103, 107630206, 215260412]

約数ペア:

[(1, 215260412), (2, 107630206), (4, 53815103), (419, 513748), (838, 256874), (1676, 128437)]