20454448

素因数分解:

$2^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1009}}^1$

素因数の和:1205

約数の個数: 40

約数和(自身を含む): 45587360

約数和(自身を除く): 25132912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181, 362, 724, 1009, 1267, 1448, 2018, 2534, 2896, 4036, 5068, 7063, 8072, 10136, 14126, 16144, 20272, 28252, 56504, 113008, 182629, 365258, 730516, 1278403, 1461032, 2556806, 2922064, 5113612, 10227224, 20454448]

約数ペア:

[(1, 20454448), (2, 10227224), (4, 5113612), (7, 2922064), (8, 2556806), (14, 1461032), (16, 1278403), (28, 730516), (56, 365258), (112, 182629), (181, 113008), (362, 56504), (724, 28252), (1009, 20272), (1267, 16144), (1448, 14126), (2018, 10136), (2534, 8072), (2896, 7063), (4036, 5068)]