15974725

素因数分解:

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

素因数の和:254

約数の個数: 36

約数和(自身を含む): 22692000

約数和(自身を除く): 6717275

約数列:

[1, 5, 13, 19, 25, 65, 95, 169, 199, 247, 325, 475, 845, 995, 1235, 2587, 3211, 3781, 4225, 4975, 6175, 12935, 16055, 18905, 33631, 49153, 64675, 80275, 94525, 168155, 245765, 638989, 840775, 1228825, 3194945, 15974725]

約数ペア:

[(1, 15974725), (5, 3194945), (13, 1228825), (19, 840775), (25, 638989), (65, 245765), (95, 168155), (169, 94525), (199, 80275), (247, 64675), (325, 49153), (475, 33631), (845, 18905), (995, 16055), (1235, 12935), (2587, 6175), (3211, 4975), (3781, 4225)]