18268720

素因数分解:

$2^4\times 5^1\times {\mathrm{228359}}^1$

素因数の和:228372

約数の個数: 20

約数和(自身を含む): 42474960

約数和(自身を除く): 24206240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228359, 456718, 913436, 1141795, 1826872, 2283590, 3653744, 4567180, 9134360, 18268720]

約数ペア:

[(1, 18268720), (2, 9134360), (4, 4567180), (5, 3653744), (8, 2283590), (10, 1826872), (16, 1141795), (20, 913436), (40, 456718), (80, 228359)]