1228825

素因数分解:

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

素因数の和:241

約数の個数: 24

約数和(自身を含む): 1736000

約数和(自身を除く): 507175

約数列:

[1, 5, 13, 19, 25, 65, 95, 199, 247, 325, 475, 995, 1235, 2587, 3781, 4975, 6175, 12935, 18905, 49153, 64675, 94525, 245765, 1228825]

約数ペア:

[(1, 1228825), (5, 245765), (13, 94525), (19, 64675), (25, 49153), (65, 18905), (95, 12935), (199, 6175), (247, 4975), (325, 3781), (475, 2587), (995, 1235)]