18231440

素因数分解:

$2^4\times 5^1\times {\mathrm{227893}}^1$

素因数の和:227906

約数の個数: 20

約数和(自身を含む): 42388284

約数和(自身を除く): 24156844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227893, 455786, 911572, 1139465, 1823144, 2278930, 3646288, 4557860, 9115720, 18231440]

約数ペア:

[(1, 18231440), (2, 9115720), (4, 4557860), (5, 3646288), (8, 2278930), (10, 1823144), (16, 1139465), (20, 911572), (40, 455786), (80, 227893)]