28231690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31721}}^1$

素因数の和:31817

約数の個数: 16

約数和(自身を含む): 51389640

約数和(自身を除く): 23157950

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 31721, 63442, 158605, 317210, 2823169, 5646338, 14115845, 28231690]

約数ペア:

[(1, 28231690), (2, 14115845), (5, 5646338), (10, 2823169), (89, 317210), (178, 158605), (445, 63442), (890, 31721)]