18380080

素因数分解:

$2^4\times 5^1\times {\mathrm{229751}}^1$

素因数の和:229764

約数の個数: 20

約数和(自身を含む): 42733872

約数和(自身を除く): 24353792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229751, 459502, 919004, 1148755, 1838008, 2297510, 3676016, 4595020, 9190040, 18380080]

約数ペア:

[(1, 18380080), (2, 9190040), (4, 4595020), (5, 3676016), (8, 2297510), (10, 1838008), (16, 1148755), (20, 919004), (40, 459502), (80, 229751)]