20512991485

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25481977}}^1$

素因数の和:25482012

約数の個数: 16

約数和(自身を含む): 29355238656

約数和(自身を除く): 8842247171

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25481977, 127409885, 178373839, 586085471, 891869195, 2930427355, 4102598297, 20512991485]

約数ペア:

[(1, 20512991485), (5, 4102598297), (7, 2930427355), (23, 891869195), (35, 586085471), (115, 178373839), (161, 127409885), (805, 25481977)]