872307640

素因数分解:

$2^3\times 5^1\times {\mathrm{21807691}}^1$

素因数の和:21807702

約数の個数: 16

約数和(自身を含む): 1962692280

約数和(自身を除く): 1090384640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21807691, 43615382, 87230764, 109038455, 174461528, 218076910, 436153820, 872307640]

約数ペア:

[(1, 872307640), (2, 436153820), (4, 218076910), (5, 174461528), (8, 109038455), (10, 87230764), (20, 43615382), (40, 21807691)]