19148720

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2237}}^1$

素因数の和:2357

約数の個数: 40

約数和(自身を含む): 44956944

約数和(自身を除く): 25808224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2237, 4280, 4474, 8560, 8948, 11185, 17896, 22370, 35792, 44740, 89480, 178960, 239359, 478718, 957436, 1196795, 1914872, 2393590, 3829744, 4787180, 9574360, 19148720]

約数ペア:

[(1, 19148720), (2, 9574360), (4, 4787180), (5, 3829744), (8, 2393590), (10, 1914872), (16, 1196795), (20, 957436), (40, 478718), (80, 239359), (107, 178960), (214, 89480), (428, 44740), (535, 35792), (856, 22370), (1070, 17896), (1712, 11185), (2140, 8948), (2237, 8560), (4280, 4474)]