1978889450

素因数分解:

$2^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{94009}}^1$

素因数の和:94442

約数の個数: 24

約数和(自身を含む): 3689516460

約数和(自身を除く): 1710627010

約数列:

[1, 2, 5, 10, 25, 50, 421, 842, 2105, 4210, 10525, 21050, 94009, 188018, 470045, 940090, 2350225, 4700450, 39577789, 79155578, 197888945, 395777890, 989444725, 1978889450]

約数ペア:

[(1, 1978889450), (2, 989444725), (5, 395777890), (10, 197888945), (25, 79155578), (50, 39577789), (421, 4700450), (842, 2350225), (2105, 940090), (4210, 470045), (10525, 188018), (21050, 94009)]