20584100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4787}}^1$

素因数の和:4844

約数の個数: 36

約数和(自身を含む): 45715824

約数和(自身を除く): 25131724

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4787, 9574, 19148, 23935, 47870, 95740, 119675, 205841, 239350, 411682, 478700, 823364, 1029205, 2058410, 4116820, 5146025, 10292050, 20584100]

約数ペア:

[(1, 20584100), (2, 10292050), (4, 5146025), (5, 4116820), (10, 2058410), (20, 1029205), (25, 823364), (43, 478700), (50, 411682), (86, 239350), (100, 205841), (172, 119675), (215, 95740), (430, 47870), (860, 23935), (1075, 19148), (2150, 9574), (4300, 4787)]