39895280

素因数分解:

$2^4\times 5^1\times {\mathrm{498691}}^1$

素因数の和:498704

約数の個数: 20

約数和(自身を含む): 92756712

約数和(自身を除く): 52861432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 498691, 997382, 1994764, 2493455, 3989528, 4986910, 7979056, 9973820, 19947640, 39895280]

約数ペア:

[(1, 39895280), (2, 19947640), (4, 9973820), (5, 7979056), (8, 4986910), (10, 3989528), (16, 2493455), (20, 1994764), (40, 997382), (80, 498691)]