28563730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219721}}^1$

素因数の和:219741

約数の個数: 16

約数和(自身を含む): 55369944

約数和(自身を除く): 26806214

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219721, 439442, 1098605, 2197210, 2856373, 5712746, 14281865, 28563730]

約数ペア:

[(1, 28563730), (2, 14281865), (5, 5712746), (10, 2856373), (13, 2197210), (26, 1098605), (65, 439442), (130, 219721)]