31236280

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2903}}^1$

素因数の和:3183

約数の個数: 32

約数和(自身を含む): 70567200

約数和(自身を除く): 39330920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 2903, 5380, 5806, 10760, 11612, 14515, 23224, 29030, 58060, 116120, 780907, 1561814, 3123628, 3904535, 6247256, 7809070, 15618140, 31236280]

約数ペア:

[(1, 31236280), (2, 15618140), (4, 7809070), (5, 6247256), (8, 3904535), (10, 3123628), (20, 1561814), (40, 780907), (269, 116120), (538, 58060), (1076, 29030), (1345, 23224), (2152, 14515), (2690, 11612), (2903, 10760), (5380, 5806)]