19780184

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{557}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 38970720

約数和(自身を除く): 19190536

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 193, 386, 557, 772, 1114, 1544, 2228, 4439, 4456, 8878, 12811, 17756, 25622, 35512, 51244, 102488, 107501, 215002, 430004, 860008, 2472523, 4945046, 9890092, 19780184]

約数ペア:

[(1, 19780184), (2, 9890092), (4, 4945046), (8, 2472523), (23, 860008), (46, 430004), (92, 215002), (184, 107501), (193, 102488), (386, 51244), (557, 35512), (772, 25622), (1114, 17756), (1544, 12811), (2228, 8878), (4439, 4456)]