491530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 1008000

約数和(自身を除く): 516470

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 199, 247, 398, 494, 995, 1235, 1990, 2470, 2587, 3781, 5174, 7562, 12935, 18905, 25870, 37810, 49153, 98306, 245765, 491530]

約数ペア:

[(1, 491530), (2, 245765), (5, 98306), (10, 49153), (13, 37810), (19, 25870), (26, 18905), (38, 12935), (65, 7562), (95, 5174), (130, 3781), (190, 2587), (199, 2470), (247, 1990), (398, 1235), (494, 995)]