20677195

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 11002805

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 215, 301, 385, 473, 1249, 1505, 2365, 3311, 6245, 8743, 13739, 16555, 43715, 53707, 68695, 96173, 268535, 375949, 480865, 590777, 1879745, 2953885, 4135439, 20677195]

約数ペア:

[(1, 20677195), (5, 4135439), (7, 2953885), (11, 1879745), (35, 590777), (43, 480865), (55, 375949), (77, 268535), (215, 96173), (301, 68695), (385, 53707), (473, 43715), (1249, 16555), (1505, 13739), (2365, 8743), (3311, 6245)]