6389890

素因数分解:

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

素因数の和:251

約数の個数: 48

約数和(自身を含む): 13176000

約数和(自身を除く): 6786110

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 199, 247, 338, 398, 494, 845, 995, 1235, 1690, 1990, 2470, 2587, 3211, 3781, 5174, 6422, 7562, 12935, 16055, 18905, 25870, 32110, 33631, 37810, 49153, 67262, 98306, 168155, 245765, 336310, 491530, 638989, 1277978, 3194945, 6389890]

約数ペア:

[(1, 6389890), (2, 3194945), (5, 1277978), (10, 638989), (13, 491530), (19, 336310), (26, 245765), (38, 168155), (65, 98306), (95, 67262), (130, 49153), (169, 37810), (190, 33631), (199, 32110), (247, 25870), (338, 18905), (398, 16055), (494, 12935), (845, 7562), (995, 6422), (1235, 5174), (1690, 3781), (1990, 3211), (2470, 2587)]