81509295

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2644

約数の個数: 48

約数和(自身を含む): 155295360

約数和(自身を除く): 73786065

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 105, 129, 147, 215, 245, 301, 645, 735, 903, 1505, 2107, 2579, 4515, 6321, 7737, 10535, 12895, 18053, 31605, 38685, 54159, 90265, 110897, 126371, 270795, 332691, 379113, 554485, 631855, 776279, 1663455, 1895565, 2328837, 3881395, 5433953, 11644185, 16301859, 27169765, 81509295]

約数ペア:

[(1, 81509295), (3, 27169765), (5, 16301859), (7, 11644185), (15, 5433953), (21, 3881395), (35, 2328837), (43, 1895565), (49, 1663455), (105, 776279), (129, 631855), (147, 554485), (215, 379113), (245, 332691), (301, 270795), (645, 126371), (735, 110897), (903, 90265), (1505, 54159), (2107, 38685), (2579, 31605), (4515, 18053), (6321, 12895), (7737, 10535)]