28880215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{63473}}^1$

素因数の和:63498

約数の個数: 16

約数和(自身を含む): 42654528

約数和(自身を除く): 13774313

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 63473, 317365, 444311, 825149, 2221555, 4125745, 5776043, 28880215]

約数ペア:

[(1, 28880215), (5, 5776043), (7, 4125745), (13, 2221555), (35, 825149), (65, 444311), (91, 317365), (455, 63473)]