1640660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11719}}^1$

素因数の和:11735

約数の個数: 24

約数和(自身を含む): 3937920

約数和(自身を除く): 2297260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11719, 23438, 46876, 58595, 82033, 117190, 164066, 234380, 328132, 410165, 820330, 1640660]

約数ペア:

[(1, 1640660), (2, 820330), (4, 410165), (5, 328132), (7, 234380), (10, 164066), (14, 117190), (20, 82033), (28, 58595), (35, 46876), (70, 23438), (140, 11719)]