28640495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25919}}^1$

素因数の和:25954

約数の個数: 16

約数和(自身を含む): 39191040

約数和(自身を除く): 10550545

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 25919, 129595, 336947, 440623, 1684735, 2203115, 5728099, 28640495]

約数ペア:

[(1, 28640495), (5, 5728099), (13, 2203115), (17, 1684735), (65, 440623), (85, 336947), (221, 129595), (1105, 25919)]