890802530

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{198397}}^1$

素因数の和:198853

約数の個数: 16

約数和(自身を含む): 1607023800

約数和(自身を除く): 716221270

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 198397, 396794, 991985, 1983970, 89080253, 178160506, 445401265, 890802530]

約数ペア:

[(1, 890802530), (2, 445401265), (5, 178160506), (10, 89080253), (449, 1983970), (898, 991985), (2245, 396794), (4490, 198397)]