8905520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8563}}^1$

素因数の和:8589

約数の個数: 40

約数和(自身を含む): 22300656

約数和(自身を除く): 13395136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8563, 17126, 34252, 42815, 68504, 85630, 111319, 137008, 171260, 222638, 342520, 445276, 556595, 685040, 890552, 1113190, 1781104, 2226380, 4452760, 8905520]

約数ペア:

[(1, 8905520), (2, 4452760), (4, 2226380), (5, 1781104), (8, 1113190), (10, 890552), (13, 685040), (16, 556595), (20, 445276), (26, 342520), (40, 222638), (52, 171260), (65, 137008), (80, 111319), (104, 85630), (130, 68504), (208, 42815), (260, 34252), (520, 17126), (1040, 8563)]