20038144

素因数分解:

$2^9\times 7^1\times {\mathrm{5591}}^1$

素因数の和:5616

約数の個数: 40

約数和(自身を含む): 45764928

約数和(自身を除く): 25726784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5591, 11182, 22364, 39137, 44728, 78274, 89456, 156548, 178912, 313096, 357824, 626192, 715648, 1252384, 1431296, 2504768, 2862592, 5009536, 10019072, 20038144]

約数ペア:

[(1, 20038144), (2, 10019072), (4, 5009536), (7, 2862592), (8, 2504768), (14, 1431296), (16, 1252384), (28, 715648), (32, 626192), (56, 357824), (64, 313096), (112, 178912), (128, 156548), (224, 89456), (256, 78274), (448, 44728), (512, 39137), (896, 22364), (1792, 11182), (3584, 5591)]