28557890

素因数分解:

$2^1\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{2543}}^1$

素因数の和:3673

約数の個数: 16

約数和(自身を含む): 51470208

約数和(自身を除く): 22912318

約数列:

[1, 2, 5, 10, 1123, 2246, 2543, 5086, 5615, 11230, 12715, 25430, 2855789, 5711578, 14278945, 28557890]

約数ペア:

[(1, 28557890), (2, 14278945), (5, 5711578), (10, 2855789), (1123, 25430), (2246, 12715), (2543, 11230), (5086, 5615)]