20890624

素因数分解:

$2^{10}\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:930

約数の個数: 44

約数和(自身を含む): 43625664

約数和(自身を除く): 22735040

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 887, 1024, 1472, 1774, 2944, 3548, 5888, 7096, 11776, 14192, 20401, 23552, 28384, 40802, 56768, 81604, 113536, 163208, 227072, 326416, 454144, 652832, 908288, 1305664, 2611328, 5222656, 10445312, 20890624]

約数ペア:

[(1, 20890624), (2, 10445312), (4, 5222656), (8, 2611328), (16, 1305664), (23, 908288), (32, 652832), (46, 454144), (64, 326416), (92, 227072), (128, 163208), (184, 113536), (256, 81604), (368, 56768), (512, 40802), (736, 28384), (887, 23552), (1024, 20401), (1472, 14192), (1774, 11776), (2944, 7096), (3548, 5888)]