661330659980

素因数分解:

$2^2\times 5^1\times {\mathrm{3631}}^1\times {\mathrm{9106729}}^1$

素因数の和:9110369

約数の個数: 24

約数和(自身を含む): 1389177021120

約数和(自身を除く): 727846361140

約数列:

[1, 2, 4, 5, 10, 20, 3631, 7262, 14524, 18155, 36310, 72620, 9106729, 18213458, 36426916, 45533645, 91067290, 182134580, 33066532999, 66133065998, 132266131996, 165332664995, 330665329990, 661330659980]

約数ペア:

[(1, 661330659980), (2, 330665329990), (4, 165332664995), (5, 132266131996), (10, 66133065998), (20, 33066532999), (3631, 182134580), (7262, 91067290), (14524, 45533645), (18155, 36426916), (36310, 18213458), (72620, 9106729)]