19549450

素因数分解:

$2^1\times 5^2\times {\mathrm{390989}}^1$

素因数の和:391001

約数の個数: 12

約数和(自身を含む): 36362070

約数和(自身を除く): 16812620

約数列:

[1, 2, 5, 10, 25, 50, 390989, 781978, 1954945, 3909890, 9774725, 19549450]

約数ペア:

[(1, 19549450), (2, 9774725), (5, 3909890), (10, 1954945), (25, 781978), (50, 390989)]