20800052

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57143}}^1$

素因数の和:57167

約数の個数: 24

約数和(自身を含む): 44800896

約数和(自身を除く): 24000844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57143, 114286, 228572, 400001, 742859, 800002, 1485718, 1600004, 2971436, 5200013, 10400026, 20800052]

約数ペア:

[(1, 20800052), (2, 10400026), (4, 5200013), (7, 2971436), (13, 1600004), (14, 1485718), (26, 800002), (28, 742859), (52, 400001), (91, 228572), (182, 114286), (364, 57143)]