20785969010

素因数分解:

$2^1\times 5^1\times {\mathrm{19819}}^1\times {\mathrm{104879}}^1$

素因数の和:124705

約数の個数: 16

約数和(自身を含む): 37416988800

約数和(自身を除く): 16631019790

約数列:

[1, 2, 5, 10, 19819, 39638, 99095, 104879, 198190, 209758, 524395, 1048790, 2078596901, 4157193802, 10392984505, 20785969010]

約数ペア:

[(1, 20785969010), (2, 10392984505), (5, 4157193802), (10, 2078596901), (19819, 1048790), (39638, 524395), (99095, 209758), (104879, 198190)]