71120720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{80819}}^1$

素因数の和:80843

約数の個数: 40

約数和(自身を含む): 180390240

約数和(自身を除く): 109269520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 80819, 161638, 323276, 404095, 646552, 808190, 889009, 1293104, 1616380, 1778018, 3232760, 3556036, 4445045, 6465520, 7112072, 8890090, 14224144, 17780180, 35560360, 71120720]

約数ペア:

[(1, 71120720), (2, 35560360), (4, 17780180), (5, 14224144), (8, 8890090), (10, 7112072), (11, 6465520), (16, 4445045), (20, 3556036), (22, 3232760), (40, 1778018), (44, 1616380), (55, 1293104), (80, 889009), (88, 808190), (110, 646552), (176, 404095), (220, 323276), (440, 161638), (880, 80819)]