681709120

素因数分解:

$2^6\times 5^1\times {\mathrm{2130341}}^1$

素因数の和:2130358

約数の個数: 28

約数和(自身を含む): 1623320604

約数和(自身を除く): 941611484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2130341, 4260682, 8521364, 10651705, 17042728, 21303410, 34085456, 42606820, 68170912, 85213640, 136341824, 170427280, 340854560, 681709120]

約数ペア:

[(1, 681709120), (2, 340854560), (4, 170427280), (5, 136341824), (8, 85213640), (10, 68170912), (16, 42606820), (20, 34085456), (32, 21303410), (40, 17042728), (64, 10651705), (80, 8521364), (160, 4260682), (320, 2130341)]