2009436080

素因数分解:

$2^4\times 5^1\times {\mathrm{25117951}}^1$

素因数の和:25117964

約数の個数: 20

約数和(自身を含む): 4671939072

約数和(自身を除く): 2662502992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25117951, 50235902, 100471804, 125589755, 200943608, 251179510, 401887216, 502359020, 1004718040, 2009436080]

約数ペア:

[(1, 2009436080), (2, 1004718040), (4, 502359020), (5, 401887216), (8, 251179510), (10, 200943608), (16, 125589755), (20, 100471804), (40, 50235902), (80, 25117951)]