20730368

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2168

約数の個数: 40

約数和(自身を含む): 43620720

約数和(自身を除く): 22890352

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2131, 2432, 4262, 4864, 8524, 9728, 17048, 34096, 40489, 68192, 80978, 136384, 161956, 272768, 323912, 545536, 647824, 1091072, 1295648, 2591296, 5182592, 10365184, 20730368]

約数ペア:

[(1, 20730368), (2, 10365184), (4, 5182592), (8, 2591296), (16, 1295648), (19, 1091072), (32, 647824), (38, 545536), (64, 323912), (76, 272768), (128, 161956), (152, 136384), (256, 80978), (304, 68192), (512, 40489), (608, 34096), (1216, 17048), (2131, 9728), (2432, 8524), (4262, 4864)]