18982002008

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{2153}}^1\times {\mathrm{2557}}^1$

素因数の和:5147

約数の個数: 32

約数和(自身を含む): 35704359360

約数和(自身を除く): 16722357352

約数列:

[1, 2, 4, 8, 431, 862, 1724, 2153, 2557, 3448, 4306, 5114, 8612, 10228, 17224, 20456, 927943, 1102067, 1855886, 2204134, 3711772, 4408268, 5505221, 7423544, 8816536, 11010442, 22020884, 44041768, 2372750251, 4745500502, 9491001004, 18982002008]

約数ペア:

[(1, 18982002008), (2, 9491001004), (4, 4745500502), (8, 2372750251), (431, 44041768), (862, 22020884), (1724, 11010442), (2153, 8816536), (2557, 7423544), (3448, 5505221), (4306, 4408268), (5114, 3711772), (8612, 2204134), (10228, 1855886), (17224, 1102067), (20456, 927943)]