20450105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13679}}^1$

素因数の和:13720

約数の個数: 16

約数和(自身を含む): 27578880

約数和(自身を除く): 7128775

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 13679, 68395, 177827, 314617, 889135, 1573085, 4090021, 20450105]

約数ペア:

[(1, 20450105), (5, 4090021), (13, 1573085), (23, 889135), (65, 314617), (115, 177827), (299, 68395), (1495, 13679)]