180165520

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{8563}}^1$

素因数の和:8839

約数の個数: 40

約数和(自身を含む): 420526656

約数和(自身を除く): 240361136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 4208, 5260, 8563, 10520, 17126, 21040, 34252, 42815, 68504, 85630, 137008, 171260, 342520, 685040, 2252069, 4504138, 9008276, 11260345, 18016552, 22520690, 36033104, 45041380, 90082760, 180165520]

約数ペア:

[(1, 180165520), (2, 90082760), (4, 45041380), (5, 36033104), (8, 22520690), (10, 18016552), (16, 11260345), (20, 9008276), (40, 4504138), (80, 2252069), (263, 685040), (526, 342520), (1052, 171260), (1315, 137008), (2104, 85630), (2630, 68504), (4208, 42815), (5260, 34252), (8563, 21040), (10520, 17126)]