18193520

素因数分解:

$2^4\times 5^1\times {\mathrm{227419}}^1$

素因数の和:227432

約数の個数: 20

約数和(自身を含む): 42300120

約数和(自身を除く): 24106600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227419, 454838, 909676, 1137095, 1819352, 2274190, 3638704, 4548380, 9096760, 18193520]

約数ペア:

[(1, 18193520), (2, 9096760), (4, 4548380), (5, 3638704), (8, 2274190), (10, 1819352), (16, 1137095), (20, 909676), (40, 454838), (80, 227419)]