2489428540

素因数分解:

$2^2\times 5^1\times {\mathrm{124471427}}^1$

素因数の和:124471436

約数の個数: 12

約数和(自身を含む): 5227799976

約数和(自身を除く): 2738371436

約数列:

[1, 2, 4, 5, 10, 20, 124471427, 248942854, 497885708, 622357135, 1244714270, 2489428540]

約数ペア:

[(1, 2489428540), (2, 1244714270), (4, 622357135), (5, 497885708), (10, 248942854), (20, 124471427)]