991468090

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{461}}^1\times {\mathrm{499}}^1$

素因数の和:1398

約数の個数: 32

約数和(自身を含む): 1796256000

約数和(自身を除く): 804787910

約数列:

[1, 2, 5, 10, 431, 461, 499, 862, 922, 998, 2155, 2305, 2495, 4310, 4610, 4990, 198691, 215069, 230039, 397382, 430138, 460078, 993455, 1075345, 1150195, 1986910, 2150690, 2300390, 99146809, 198293618, 495734045, 991468090]

約数ペア:

[(1, 991468090), (2, 495734045), (5, 198293618), (10, 99146809), (431, 2300390), (461, 2150690), (499, 1986910), (862, 1150195), (922, 1075345), (998, 993455), (2155, 460078), (2305, 430138), (2495, 397382), (4310, 230039), (4610, 215069), (4990, 198691)]