20449585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1597}}^1$

素因数の和:1812

約数の個数: 16

約数和(自身を含む): 26577936

約数和(自身を除く): 6128351

約数列:

[1, 5, 13, 65, 197, 985, 1597, 2561, 7985, 12805, 20761, 103805, 314609, 1573045, 4089917, 20449585]

約数ペア:

[(1, 20449585), (5, 4089917), (13, 1573045), (65, 314609), (197, 103805), (985, 20761), (1597, 12805), (2561, 7985)]