20438272

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{2753}}^1$

素因数の和:2798

約数の個数: 36

約数和(自身を含む): 42218820

約数和(自身を除く): 21780548

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 928, 1856, 2753, 3712, 5506, 7424, 11012, 22024, 44048, 79837, 88096, 159674, 176192, 319348, 352384, 638696, 704768, 1277392, 2554784, 5109568, 10219136, 20438272]

約数ペア:

[(1, 20438272), (2, 10219136), (4, 5109568), (8, 2554784), (16, 1277392), (29, 704768), (32, 638696), (58, 352384), (64, 319348), (116, 176192), (128, 159674), (232, 88096), (256, 79837), (464, 44048), (928, 22024), (1856, 11012), (2753, 7424), (3712, 5506)]