28380640

素因数分解:

$2^5\times 5^1\times {\mathrm{177379}}^1$

素因数の和:177394

約数の個数: 24

約数和(自身を含む): 67049640

約数和(自身を除く): 38669000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 177379, 354758, 709516, 886895, 1419032, 1773790, 2838064, 3547580, 5676128, 7095160, 14190320, 28380640]

約数ペア:

[(1, 28380640), (2, 14190320), (4, 7095160), (5, 5676128), (8, 3547580), (10, 2838064), (16, 1773790), (20, 1419032), (32, 886895), (40, 709516), (80, 354758), (160, 177379)]