18023120

素因数分解:

$2^4\times 5^1\times {\mathrm{225289}}^1$

素因数の和:225302

約数の個数: 20

約数和(自身を含む): 41903940

約数和(自身を除く): 23880820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225289, 450578, 901156, 1126445, 1802312, 2252890, 3604624, 4505780, 9011560, 18023120]

約数ペア:

[(1, 18023120), (2, 9011560), (4, 4505780), (5, 3604624), (8, 2252890), (10, 1802312), (16, 1126445), (20, 901156), (40, 450578), (80, 225289)]