17205520

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{499}}^1$

素因数の和:943

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 22970480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 499, 862, 998, 1724, 1996, 2155, 2495, 3448, 3992, 4310, 4990, 6896, 7984, 8620, 9980, 17240, 19960, 34480, 39920, 215069, 430138, 860276, 1075345, 1720552, 2150690, 3441104, 4301380, 8602760, 17205520]

約数ペア:

[(1, 17205520), (2, 8602760), (4, 4301380), (5, 3441104), (8, 2150690), (10, 1720552), (16, 1075345), (20, 860276), (40, 430138), (80, 215069), (431, 39920), (499, 34480), (862, 19960), (998, 17240), (1724, 9980), (1996, 8620), (2155, 7984), (2495, 6896), (3448, 4990), (3992, 4310)]