16780640

素因数分解:

$2^5\times 5^1\times {\mathrm{104879}}^1$

素因数の和:104894

約数の個数: 24

約数和(自身を含む): 39644640

約数和(自身を除く): 22864000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 104879, 209758, 419516, 524395, 839032, 1048790, 1678064, 2097580, 3356128, 4195160, 8390320, 16780640]

約数ペア:

[(1, 16780640), (2, 8390320), (4, 4195160), (5, 3356128), (8, 2097580), (10, 1678064), (16, 1048790), (20, 839032), (32, 524395), (40, 419516), (80, 209758), (160, 104879)]