30891880

素因数分解:

$2^3\times 5^1\times {\mathrm{772297}}^1$

素因数の和:772308

約数の個数: 16

約数和(自身を含む): 69506820

約数和(自身を除く): 38614940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 772297, 1544594, 3089188, 3861485, 6178376, 7722970, 15445940, 30891880]

約数ペア:

[(1, 30891880), (2, 15445940), (4, 7722970), (5, 6178376), (8, 3861485), (10, 3089188), (20, 1544594), (40, 772297)]