12589040

素因数分解:

$2^4\times 5^1\times {\mathrm{157363}}^1$

素因数の和:157376

約数の個数: 20

約数和(自身を含む): 29269704

約数和(自身を除く): 16680664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157363, 314726, 629452, 786815, 1258904, 1573630, 2517808, 3147260, 6294520, 12589040]

約数ペア:

[(1, 12589040), (2, 6294520), (4, 3147260), (5, 2517808), (8, 1573630), (10, 1258904), (16, 786815), (20, 629452), (40, 314726), (80, 157363)]