18199760

素因数分解:

$2^4\times 5^1\times {\mathrm{227497}}^1$

素因数の和:227510

約数の個数: 20

約数和(自身を含む): 42314628

約数和(自身を除く): 24114868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227497, 454994, 909988, 1137485, 1819976, 2274970, 3639952, 4549940, 9099880, 18199760]

約数ペア:

[(1, 18199760), (2, 9099880), (4, 4549940), (5, 3639952), (8, 2274970), (10, 1819976), (16, 1137485), (20, 909988), (40, 454994), (80, 227497)]