20157752

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 40020480

約数和(自身を除く): 19862728

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1543, 1633, 3086, 3266, 6172, 6532, 12344, 13064, 35489, 70978, 109553, 141956, 219106, 283912, 438212, 876424, 2519719, 5039438, 10078876, 20157752]

約数ペア:

[(1, 20157752), (2, 10078876), (4, 5039438), (8, 2519719), (23, 876424), (46, 438212), (71, 283912), (92, 219106), (142, 141956), (184, 109553), (284, 70978), (568, 35489), (1543, 13064), (1633, 12344), (3086, 6532), (3266, 6172)]