20392570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2083}}^1$

素因数の和:2190

約数の個数: 32

約数和(自身を含む): 40512960

約数和(自身を除く): 20120390

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 2083, 4166, 4895, 9790, 10415, 20830, 22913, 45826, 114565, 185387, 229130, 370774, 926935, 1853870, 2039257, 4078514, 10196285, 20392570]

約数ペア:

[(1, 20392570), (2, 10196285), (5, 4078514), (10, 2039257), (11, 1853870), (22, 926935), (55, 370774), (89, 229130), (110, 185387), (178, 114565), (445, 45826), (890, 22913), (979, 20830), (1958, 10415), (2083, 9790), (4166, 4895)]