20960720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23819}}^1$

素因数の和:23843

約数の個数: 40

約数和(自身を含む): 53166240

約数和(自身を除く): 32205520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23819, 47638, 95276, 119095, 190552, 238190, 262009, 381104, 476380, 524018, 952760, 1048036, 1310045, 1905520, 2096072, 2620090, 4192144, 5240180, 10480360, 20960720]

約数ペア:

[(1, 20960720), (2, 10480360), (4, 5240180), (5, 4192144), (8, 2620090), (10, 2096072), (11, 1905520), (16, 1310045), (20, 1048036), (22, 952760), (40, 524018), (44, 476380), (55, 381104), (80, 262009), (88, 238190), (110, 190552), (176, 119095), (220, 95276), (440, 47638), (880, 23819)]