18223120

素因数分解:

$2^4\times 5^1\times {\mathrm{227789}}^1$

素因数の和:227802

約数の個数: 20

約数和(自身を含む): 42368940

約数和(自身を除く): 24145820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227789, 455578, 911156, 1138945, 1822312, 2277890, 3644624, 4555780, 9111560, 18223120]

約数ペア:

[(1, 18223120), (2, 9111560), (4, 4555780), (5, 3644624), (8, 2277890), (10, 1822312), (16, 1138945), (20, 911156), (40, 455578), (80, 227789)]