28347220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{479}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 65318400

約数和(自身を除く): 36971180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 269, 479, 538, 958, 1076, 1345, 1916, 2395, 2690, 2959, 4790, 5269, 5380, 5918, 9580, 10538, 11836, 14795, 21076, 26345, 29590, 52690, 59180, 105380, 128851, 257702, 515404, 644255, 1288510, 1417361, 2577020, 2834722, 5669444, 7086805, 14173610, 28347220]

約数ペア:

[(1, 28347220), (2, 14173610), (4, 7086805), (5, 5669444), (10, 2834722), (11, 2577020), (20, 1417361), (22, 1288510), (44, 644255), (55, 515404), (110, 257702), (220, 128851), (269, 105380), (479, 59180), (538, 52690), (958, 29590), (1076, 26345), (1345, 21076), (1916, 14795), (2395, 11836), (2690, 10538), (2959, 9580), (4790, 5918), (5269, 5380)]