81154000

素因数分解:

$2^4\times 5^3\times {\mathrm{40577}}^1$

素因数の和:40600

約数の個数: 40

約数和(自身を含む): 196235208

約数和(自身を除く): 115081208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 40577, 81154, 162308, 202885, 324616, 405770, 649232, 811540, 1014425, 1623080, 2028850, 3246160, 4057700, 5072125, 8115400, 10144250, 16230800, 20288500, 40577000, 81154000]

約数ペア:

[(1, 81154000), (2, 40577000), (4, 20288500), (5, 16230800), (8, 10144250), (10, 8115400), (16, 5072125), (20, 4057700), (25, 3246160), (40, 2028850), (50, 1623080), (80, 1014425), (100, 811540), (125, 649232), (200, 405770), (250, 324616), (400, 202885), (500, 162308), (1000, 81154), (2000, 40577)]