28996785

素因数分解:

$3^4\times 5^1\times {\mathrm{71597}}^1$

素因数の和:71614

約数の個数: 20

約数和(自身を含む): 51980148

約数和(自身を除く): 22983363

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71597, 214791, 357985, 644373, 1073955, 1933119, 3221865, 5799357, 9665595, 28996785]

約数ペア:

[(1, 28996785), (3, 9665595), (5, 5799357), (9, 3221865), (15, 1933119), (27, 1073955), (45, 644373), (81, 357985), (135, 214791), (405, 71597)]