19885685

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 26334720

約数和(自身を除く): 6449035

約数列:

[1, 5, 19, 23, 95, 115, 361, 437, 479, 1805, 2185, 2395, 8303, 9101, 11017, 41515, 45505, 55085, 172919, 209323, 864595, 1046615, 3977137, 19885685]

約数ペア:

[(1, 19885685), (5, 3977137), (19, 1046615), (23, 864595), (95, 209323), (115, 172919), (361, 55085), (437, 45505), (479, 41515), (1805, 11017), (2185, 9101), (2395, 8303)]