28115605

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25913}}^1$

素因数の和:25956

約数の個数: 16

約数和(自身を含む): 39803904

約数和(自身を除く): 11688299

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 25913, 129565, 181391, 803303, 906955, 4016515, 5623121, 28115605]

約数ペア:

[(1, 28115605), (5, 5623121), (7, 4016515), (31, 906955), (35, 803303), (155, 181391), (217, 129565), (1085, 25913)]