20238896

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1279}}^1$

素因数の和:1353

約数の個数: 40

約数和(自身を含む): 41902080

約数和(自身を除く): 21663184

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1279, 1978, 2558, 3956, 5116, 7912, 10232, 15824, 20464, 29417, 54997, 58834, 109994, 117668, 219988, 235336, 439976, 470672, 879952, 1264931, 2529862, 5059724, 10119448, 20238896]

約数ペア:

[(1, 20238896), (2, 10119448), (4, 5059724), (8, 2529862), (16, 1264931), (23, 879952), (43, 470672), (46, 439976), (86, 235336), (92, 219988), (172, 117668), (184, 109994), (344, 58834), (368, 54997), (688, 29417), (989, 20464), (1279, 15824), (1978, 10232), (2558, 7912), (3956, 5116)]