20801152

素因数分解:

$2^7\times {\mathrm{101}}^1\times {\mathrm{1609}}^1$

素因数の和:1724

約数の個数: 32

約数和(自身を含む): 41876100

約数和(自身を除く): 21074948

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 128, 202, 404, 808, 1609, 1616, 3218, 3232, 6436, 6464, 12872, 12928, 25744, 51488, 102976, 162509, 205952, 325018, 650036, 1300072, 2600144, 5200288, 10400576, 20801152]

約数ペア:

[(1, 20801152), (2, 10400576), (4, 5200288), (8, 2600144), (16, 1300072), (32, 650036), (64, 325018), (101, 205952), (128, 162509), (202, 102976), (404, 51488), (808, 25744), (1609, 12928), (1616, 12872), (3218, 6464), (3232, 6436)]