20665728

素因数分解:

$2^7\times 3^2\times {\mathrm{17939}}^1$

素因数の和:17959

約数の個数: 48

約数和(自身を含む): 59471100

約数和(自身を除く): 38805372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 288, 384, 576, 1152, 17939, 35878, 53817, 71756, 107634, 143512, 161451, 215268, 287024, 322902, 430536, 574048, 645804, 861072, 1148096, 1291608, 1722144, 2296192, 2583216, 3444288, 5166432, 6888576, 10332864, 20665728]

約数ペア:

[(1, 20665728), (2, 10332864), (3, 6888576), (4, 5166432), (6, 3444288), (8, 2583216), (9, 2296192), (12, 1722144), (16, 1291608), (18, 1148096), (24, 861072), (32, 645804), (36, 574048), (48, 430536), (64, 322902), (72, 287024), (96, 215268), (128, 161451), (144, 143512), (192, 107634), (288, 71756), (384, 53817), (576, 35878), (1152, 17939)]