28506530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219281}}^1$

素因数の和:219301

約数の個数: 16

約数和(自身を含む): 55259064

約数和(自身を除く): 26752534

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219281, 438562, 1096405, 2192810, 2850653, 5701306, 14253265, 28506530]

約数ペア:

[(1, 28506530), (2, 14253265), (5, 5701306), (10, 2850653), (13, 2192810), (26, 1096405), (65, 438562), (130, 219281)]