18409840

素因数分解:

$2^4\times 5^1\times {\mathrm{230123}}^1$

素因数の和:230136

約数の個数: 20

約数和(自身を含む): 42803064

約数和(自身を除く): 24393224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230123, 460246, 920492, 1150615, 1840984, 2301230, 3681968, 4602460, 9204920, 18409840]

約数ペア:

[(1, 18409840), (2, 9204920), (4, 4602460), (5, 3681968), (8, 2301230), (10, 1840984), (16, 1150615), (20, 920492), (40, 460246), (80, 230123)]