1980640

素因数分解:

$2^5\times 5^1\times {\mathrm{12379}}^1$

素因数の和:12394

約数の個数: 24

約数和(自身を含む): 4679640

約数和(自身を除く): 2699000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 12379, 24758, 49516, 61895, 99032, 123790, 198064, 247580, 396128, 495160, 990320, 1980640]

約数ペア:

[(1, 1980640), (2, 990320), (4, 495160), (5, 396128), (8, 247580), (10, 198064), (16, 123790), (20, 99032), (32, 61895), (40, 49516), (80, 24758), (160, 12379)]