199052440

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{16001}}^1$

素因数の和:16323

約数の個数: 32

約数和(自身を含む): 449336160

約数和(自身を除く): 250283720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 16001, 32002, 64004, 80005, 128008, 160010, 320020, 640040, 4976311, 9952622, 19905244, 24881555, 39810488, 49763110, 99526220, 199052440]

約数ペア:

[(1, 199052440), (2, 99526220), (4, 49763110), (5, 39810488), (8, 24881555), (10, 19905244), (20, 9952622), (40, 4976311), (311, 640040), (622, 320020), (1244, 160010), (1555, 128008), (2488, 80005), (3110, 64004), (6220, 32002), (12440, 16001)]