209780338

素因数分解:

$2^1\times {\mathrm{239}}^1\times {\mathrm{619}}^1\times {\mathrm{709}}^1$

素因数の和:1569

約数の個数: 16

約数和(自身を含む): 316944000

約数和(自身を除く): 107163662

約数列:

[1, 2, 239, 478, 619, 709, 1238, 1418, 147941, 169451, 295882, 338902, 438871, 877742, 104890169, 209780338]

約数ペア:

[(1, 209780338), (2, 104890169), (239, 877742), (478, 438871), (619, 338902), (709, 295882), (1238, 169451), (1418, 147941)]