81569660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{214657}}^1$

素因数の和:214685

約数の個数: 24

約数和(自身を含む): 180312720

約数和(自身を除く): 98743060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 214657, 429314, 858628, 1073285, 2146570, 4078483, 4293140, 8156966, 16313932, 20392415, 40784830, 81569660]

約数ペア:

[(1, 81569660), (2, 40784830), (4, 20392415), (5, 16313932), (10, 8156966), (19, 4293140), (20, 4078483), (38, 2146570), (76, 1073285), (95, 858628), (190, 429314), (380, 214657)]